Biology Questions with solutions MCQs

1. Most of the energy produced during respiration is stored in

A

Pyruvic acid

B

Carbon dioxide

C

Adenosine triphosphate

D

Adenosine monophosphate

Biology General Science
Correct Answer : C
Explanation :

During cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide and water. The energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate).

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2. The fluid medium contained in the blood is

A

Plasma

B

Syrup

C

Platelets

D

Lymph

Biology General Science
Correct Answer : A
Explanation :

Plasma, also called blood plasma, the liquid portion of blood. Plasma serves as a transport medium for delivering nutrients to the cells of the various organs of the body and for transporting waste products derived from cellular metabolism to the kidneys, liver, and lungs for excretion.

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3. The gap between two neurons is generally known as

A

Synopsis

B

Impulse

C

Synapse

D

Synaptic Code

Biology General Science
Correct Answer : C
Explanation :

Synapse, also called neuronal junction, the site of transmission of electric nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector).

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4. In a plant the small pores present on the surface of a leaf are known as

A

Cholorphyll

B

Stomata

C

Guard Cells

D

Leaf Pore

Biology General Science
Correct Answer : B
Explanation :

Stomate, also called stoma, plural stomata or stomas, any of the microscopic openings or pores in the epidermis of leaves and young stems.

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5. Chlamydiosis is related with

A

Syphills

B

Gonorrhoea

C

Urethra

D

HIV

Biology General Science
Correct Answer : C
Explanation :

It is caused by bacteria called Chlamydia trachomatis. It can infect both men and women. Women can get chlamydia in the cervix, rectum, or throat. Men can get chlamydia in the urethra (inside the penis), rectum, or throat.

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6. Which of the following is considered as a chemical method of contraception?

A

Grafting

B

Using Diaphragm

C

Birth control pills

D

Menstruation

Biology General Science
Correct Answer : C
Explanation :

Birth control pills (BCPs) contain man-made forms of 2 hormones called estrogen and progestin. These hormones are made naturally in a woman`s ovaries. BCPs can contain both of these hormones, or have progestin only. Both hormones prevent a woman`s ovary from releasing an egg during her menstrual cycle (called ovulation).BCPs are also called oral contraceptives or just "the pill."

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7. Which of the following is the correct location of Thyroid gland?

A

Behind the neck

B

In front of the neck below larynx

C

Near oesophagus

D

Behind frontal lobe

Biology General Science
Correct Answer : B
Explanation :

The thyroid gland is located at the front of the neck just below the Adam`s apple (larynx). It is butterfly-shaped and consists of two lobes located either side of the windpipe (trachea). A normal thyroid gland is not usually outwardly visible or able to be felt if finger pressure is applied to the neck.

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8. Who among the following gave the first Theory of Evolution

A

Gregor Mendal

B

Isaac Newton

C

Jean-Baptiste Lamarck

D

Thomas Edision

Biology General Science
Correct Answer : C
Explanation :

In the early 19th century Jean-Baptiste Lamarck (1744–1829) proposed his theory of the transmutation of species, the first fully formed theory of evolution.

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9. The Stratosphere layer of the atmoshphere consists of what among the following the provides protection to our life?

A

Nitrogen

B

Hydrogen

C

Argon

D

Ozone

Biology General Science
Correct Answer : D
Explanation :

The ozone layer in the stratosphere absorbs a portion of the radiation from the sun, preventing it from reaching the planet`s surface. Most importantly, it absorbs the portion of UV light called UVB. UVB is a kind of ultraviolet light from the sun (and sun lamps) that has several harmful effects.

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10. In the Kidney of mammals, Loop of Henle can be found in

A

Renal Medulla

B

Renal Cortex

C

Renal Pelvis

D

Renal Hilus

Biology General Science
Correct Answer : A
Explanation :

The loop of Henle is a U-shaped or hairpin tube that lies deep in the medulla within a renal pyramid and then loops back towards the cortex. Its primary role is to concentrate the salt in the interstitium.

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11. The resources which are usually found everywhere on the earth are known as

A

Ubiquitous resources

B

Renewable resources

C

Non-renewable resources

D

Human made resources

Biology General Science
Correct Answer : A
Explanation :

Those resources which are found everywhere are known as ubiquitous resources. Ubiquitous resources are those natural resources which are available everywhere. Air, water and wind are examples of ubiquitous resources.

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12. Which of the following is generally considered as a primary source of water?

A

Pond

B

Rain

C

Lakes

D

Rivers

Biology General Science
Correct Answer : B
Explanation :

Rainwater is the primary source of water. It is considered as a pure and fresh form of water.

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13. The common tube in human male for urine and sperm is

A

Uterus

B

Urinary Bladder

C

Ureter

D

Urethra

Biology General Science
Correct Answer : D
Explanation :

The penis carries sperm out of the body. There are three tubes inside the penis. One is called the urethra. It is hollow and carries urine from the bladder through the penis to the outside.

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14. The structural and functional unit of ecology is generally known as

A

Ecosystem

B

Environment

C

Inheritance

D

Adaptation

Biology General Science
Correct Answer : A
Explanation :

The structural and functional unit of the environment is the ecosystem. The ecosystem consists of biotic and abiotic factors and shows interactions among themselves.

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15. Speciation is defined as the evolutionary process by which

A

Hybird species are formed

B

New and distinct species are formed

C

shows difference in physical traits

D

evolutionary paths converge

Biology General Science
Correct Answer : B
Explanation :

Speciation is an evolutionary process by which a new species comes into being. A species is a group of organisms that can reproduce with one another to produce fertile offspring and is reproductively isolated from other organisms.

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16. Vein through which nutrients of the food molecules travels towards heart is called

A

Iliac Vein

B

Portal Vein

C

Hepatic Vein

D

Lateral Vein

Biology General Science
Correct Answer : C
Explanation :

Hepatic veins are blood vessels that return low-oxygen blood from your liver back to the heart. The veins are key players in the supply chain that moves the blood that delivers nutrients and oxygen to every cell in your body. A blockage in one of the hepatic veins may damage your liver.

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17. Which of the following helps in promoting stem elongation in a plant?

A

Auxin

B

Oxalic Acid

C

Abscisic Acid

D

Ethylene

Biology General Science
Correct Answer : A
Explanation :

Auxin is a plant hormone produced in the stem tip that promotes cell elongation.

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18. The structural and functional unit of nervous system is called a

A

Nephron

B

Neuron

C

Axon

D

Medulla

Biology General Science
Correct Answer : B
Explanation :

Neurons, or nerve cell, are the main structural and functional units of the nervous system. Every neuron consists of a body (soma) and a number of processes (neurites).

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19. The organism which indicates the faecal contamination of water in the river Ganga of India is

A

Mucor sp

B

Coliform bacteria

C

Amoeba

D

Lactobacillus bacteria

Biology General Science
Correct Answer : B
Explanation :

E coli is considered to be the species of coliform bacteria that is the best indicator of faecal pollution and possible presence of disease-causing pathogens,” said noted environmental scientist and former BHU professor B D Tripathi.

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20. Which of the following organisms can live without oxygen of air?

A

Amoeba

B

Sheep

C

Leech

D

Yeast

Biology General Science
Correct Answer : D
Explanation :

Yeast can respire without oxygen. This type of respiration is known as anaerobic respiration.

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21. The Chipko Andolan was basically started against

A

deforestration

B

development of new breeds of forest plants

C

zoological survey of India

D

conservation of natural resources

Biology General Science
Correct Answer : A
Explanation :

In the 1970s, an organized resistance to the destruction of forests spread throughout India and came to be known as the Chipko movement. The name of the movement comes from the word "embrace", as the villagers hugged the trees, and prevented the contractors from felling them.

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22. Homologous chrosomes which are similar in both the sexes are known as

A

Autosomes

B

Allosomes

C

Sex chromosomes

D

Androsomes

Biology General Science
Correct Answer : A
Explanation :

Autosomes are homologous chromosomes i.e. chromosomes which contain the same genes (regions of DNA) in the same order along their chromosomal arms. The chromosomes of the 23rd pair are called allosomes consisting of two X chromosomes in most females, and an X chromosome and a Y chromosome in most males.

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23. In an ecosystem, energy disposal for transfer from one tropic level to the next is in the form of

A

heat energy

B

mechanical energy

C

chemical energy

D

light energy

Biology General Science
Correct Answer : C
Explanation :

The 10% of energy available for transfer from one trophic level to the next in an ecosystem is in the form of chemical energy. The producers capture the energy present in sunlight and convert it into chemical energy which is passed into onto other trophic levels.

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24. Male harmone is

A

Adrenaline

B

Testosterone

C

Progesterone

D

Oestrogen

Biology General Science
Correct Answer : B
Explanation :

The major sex hormone in men is testosterone, which is produced mainly in the testes. The testes are controlled by a small gland in the brain called the pituitary gland, which in turn is controlled by an area of the brain called the hypothalamus. Androgens are crucial for male sexual and reproductive function.

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25. An example of primary air pollutant among the following is

A

Sulphuric Acid

B

Photochemical smog

C

Ozone

D

Carbon Monoxide

Biology General Science
Correct Answer : D
Explanation :

Pollutants that are formed and emitted directly from particular sources. Examples are particulates, carbon monoxide, nitrogen oxide, and sulfur oxide.

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26. Propagules are used to raise

A

New Plants

B

New born animals

C

bacteria

D

Fungi

Biology General Science
Correct Answer : A
Explanation :

Propagules used to raise growth new plants.

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27. Bowman`s capsule and glomerulus together form the

A

uriniferous tubule

B

renal pelvis

C

renal corpuscle

D

renal medulla

Biology General Science
Correct Answer : C
Explanation :

The Bowman`s capsule and glomerulus together form the renal corpuscle. Blood enters the glomerulus via the afferent arteriole and exits in the efferent arteriole. The endothelium of the glomerulus contains pores, and lies adjacent to the capsule membrane, which also contains pores called filtration slits.

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28. What is the role of platelets in a human body?

A

Oxygen transport

B

Carbon Dioxide transport

C

Clotting of blood

D

Giving immunity to the body

Biology General Science
Correct Answer : C
Explanation :

Platelets, or thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or prevent bleeding.

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29. The chlorophyll in photosynthesis is used for

A

absorbing light

B

splitting water molecules

C

reduction

D

absorbing sound

Biology General Science
Correct Answer : A
Explanation :

Chlorophyll`s job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules.

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30. The structure which provides nutrition to the developing foetus is

A

Ovary

B

Fallopian Tube

C

Placenta

D

Seminal Vesicle

Biology General Science
Correct Answer : C
Explanation :

Extra structure which provides nutrition to the embryo is placenta. Placenta is the lifeline between the mother and the baby.

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31. The testes that is the male reproductive organ in a human body performs which of the following functions?

A

production of sperms only

B

production of testosterone only

C

production of both sperms and progesterone

D

production of both sperms and testosterone

Biology General Science
Correct Answer : D
Explanation :

The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm. Within the testes are coiled masses of tubes called seminiferous tubules. These tubules are responsible for producing the sperm cells through a process called spermatogenesis.

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32. Which of the following is a part of the brain that controls thinking

A

Forebrain

B

Midbrain

C

Hindbrain

D

Spinal Cord

Biology General Science
Correct Answer : A
Explanation :

By far the largest region of your brain is the forebrain (derived from the developmental prosencephalon), which contains the entire cerebrum and several structures directly nestled within it - the thalamus, hypothalamus, the pineal gland and the limbic system.

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33. The xylem vessels in plants are responsible for the transport of

A

Water from roots to the shoot

B

amino acids from roots to the shoot

C

gluten from roots to the shoot

D

carbon dioxide from roots to the shoot

Biology General Science
Correct Answer : A
Explanation :

Xylem transports water and nutrients that enter the plant in the root up through the stem and out to all parts of the leaf. Xylem has two types of cells known as tracheids and vessel elements.

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34. On what cellular structures are genes in eukaryotes carried?

A

Endoplasmic reticulum

B

Nuclear membrane

C

Chromosomes

D

Mitrochondria

Biology General Science
Correct Answer : C
Explanation :

#

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35. Pituitary gland, pineal gland and hypothalamus are located in which part of the human body?

A

Kidney

B

Brain

C

Thoracic cavity

D

Neck

Biology General Science
Correct Answer : B
Explanation :

The pituitary gland or hypophysis is a small gland about 1 centimeter in diameter or the size of a pea. It is nearly surrounded by bone as it rests in the sella turcica, a depression in the sphenoid bone. The gland is connected to the hypothalamus of the brain by a slender stalk called the infundibulum.

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36. The increase in global temperatures is the result of

A

Good Climate

B

Greenhouse effect

C

Deforestation

D

Ice formation

Biology General Science
Correct Answer : B
Explanation :

Global warming is the unusually rapid increase in Earth`s average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels

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37. Eggs in carpels are usually known as

A

Ovaries

B

Ovules

C

styles

D

stigma

Biology General Science
Correct Answer : B
Explanation :

A carpel is the female reproductive part of the flower —composed of ovary, style, and stigma— and usually interpreted as modified leaves that bear structures called ovules, inside which egg cells ultimately form.

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38. Hydra is an organism that reproduces asexually by

A

Binary fission

B

Multiple fission

C

vegetative propagation

D

Budding

Biology General Science
Correct Answer : D
Explanation :

When food is plentiful, many Hydra reproduce asexually by budding. The buds form from the body wall, grow into miniature adults and break away when mature.

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39. Some preserved traces of living organisms usually on the hardened mud found in the deep layers of the earth are usually known as

A

RNA

B

Histones

C

Fossils

D

Chromosomes

Biology General Science
Correct Answer : C
Explanation :

The word fossil comes from the Latin word fossus, meaning "having been dug up." Fossils are often found in rock formations deep in the earth. Fossilization is the process of remains becoming fossils.

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40. Normally, what is the average life span of RBC`s?

A

220 Days

B

4 weeks

C

4 days

D

120 days

Biology General Science
Correct Answer : D
Explanation :

Human red blood cells are formed mainly in the bone marrow and are believed to have an average life span of approximately 120 days.

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41. Food webs are generally known to be

A

irrelevant to food chains

B

having one kind of food

C

independent arrangement of food chains

D

interconnected arrangement of food chains

Biology General Science
Correct Answer : D
Explanation :

A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community. Another name for food web is consumer-resource system.

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42. Plant harmones are also called

A

Phytohormones

B

hypothomes

C

metahormones

D

cytohormones

Biology General Science
Correct Answer : A
Explanation :

Plant hormones (also known as phytohormones) are organic substances that regulate plant growth and development.

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43. Plants that have lost their capacity to reproduce seeds, usually reproduce by

A

binary fission

B

multiple fission

C

gametic fission

D

vegatative propagaion

Biology General Science
Correct Answer : D
Explanation :

If the plants lose their capacity to produce seed, they will carry out reproduction through asexual means, through their vegetative parts like stem, leaf, branch, etc. The formation of new plants from detached vegetative parts is called vegetative propagation.

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44. The source of information for making proteins is generally stored in

A

RNA

B

enzymes

C

DNA

D

rough endoplasmic reticulum

Biology General Science
Correct Answer : C
Explanation :

The information to make proteins is stored in an organism`s DNA. Each protein is coded for by a specific section of DNA called a gene. A gene is the section of DNA required to produce one protein.

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45. Which of the following enzymes is present in the salivary glands of human beings?

A

Trypsin

B

Amylase

C

Lipase

D

Pepsin

Biology General Science
Correct Answer : B
Explanation :

Saliva contains the enzyme amylase, also called ptyalin, which is capable of breaking down starch into simpler sugars such as maltose and dextrin that can be further broken down in the small intestine.

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46. The pollutant which is responsible for ozone holes is

A

oxygen

B

carbon dioxide

C

sulphur dioxide

D

chlorofluorocarbons

Biology General Science
Correct Answer : D
Explanation :

Chlorofluorocarbons (CFCs) and other halogenated ozone-depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. The total amount of effective halogens (chlorine and bromine) in the stratosphere can be calculated and are known as the equivalent effective stratospheric chlorine (EESC).

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47. In a human body the largest endocrine gland is called

A

pineal gland

B

pituitary gland

C

thyroid gland

D

adrenal gland

Biology General Science
Correct Answer : C
Explanation :

The thyroid is our body`s biggest endocrine gland, and regulates important metabolic processes connected to our heart rate, body temperature and energy levels.

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48. Which one of the following hormones is essential for the uptake of glucose by cells in the human body?

A

GH

B

TSH

C

Insulin

D

Cortisol

Biology General Science
Correct Answer : C
Explanation :

Insulin is a hormone created by your pancreas that controls the amount of glucose in your bloodstream at any given moment. It also helps store glucose in your liver, fat, and muscles.

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49. Circulatory system is made of

A

veins and arteries

B

lymph vessels and nodes

C

blood vessels, heart and blood

D

capillaries and veins

Biology General Science
Correct Answer : C
Explanation :

Your circulatory system is made up of several parts, including your:
Heart: This muscular organ works to pump blood throughout your body via an intricate network of blood vessels.
Arteries. These thick-walled blood vessels carry oxygenated blood away from your heart.
Veins: These blood vessels carry deoxygenated blood back toward your heart.
Capillaries: These tiny blood vessels facilitate the exchange of oxygen, nutrients, and waste between your circulatory system and your organs and tissues.

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50. The process of removal of metabolic waste from the body is known as ______

A

Gastrulation

B

Excretion

C

Photosynthesis

D

Digestion

Biology Sub Auditor 2021
Correct Answer : B
Explanation :

Excretion

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51. Which of the following terms denotes the decomposed organic matter?

A

Humus

B

Litter

C

Explant

D

Callus

Biology Sub Auditor 2021
Correct Answer : A
Explanation :

Humus

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52. Which of the following group of animals get nutrition by feeding on both plants and animals?

A

Carnivores

B

Omnivores

C

Autotrophs

D

Herbivores

Biology Sub Auditor 2021
Correct Answer : B
Explanation :

Omnivores

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53. Which of the following pigments gives green colour to the leaves?

A

Nucleus

B

Cytoplasm

C

Chlorophyll

D

Mitochondria

Biology Sub Auditor 2021
Correct Answer : C
Explanation :

Chlorophyll

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54. Which of the following helps to translocate a variety of organic and inorganic solutes from the leaves to other parts of the plants?

A

Cortex

B

Pith

C

Phloem

D

Xylem

Biology Sub Auditor 2021
Correct Answer : C
Explanation :

Phloem

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55. Autotrophic nutrition is found only in ________.

A

Fishes

B

Green Plants

C

Birds

D

Mammals

Biology Sub Auditor 2021
Correct Answer : B
Explanation :

Green Plants

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56. Which of the following processes denotes water soluble inorganic nutrients go down into the soil horizon and gets precipitated as unavailable salts?

A

Eutrophication

B

Fragmentation

C

Leaching

D

Biomagnification

Biology Sub Auditor 2021
Correct Answer : C
Explanation :

Leaching

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57. Which of the following vitamin deficiencies causes Xerophthalmia?

A

Vitamin A

B

Vitamin E

C

Vitamin K

D

Vitamin B12

Biology Sub Auditor 2021
Correct Answer : A
Explanation :

Vitamin A

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58. Which of the following vitamins is also known as Thiamine?

A

Vitamin C

B

Vitamin B1

C

Vitamin B6

D

Vitamin B12

Biology Sub Auditor 2021
Correct Answer : B
Explanation :

Thiamin (thiamine), or vitamin B1, is a water-soluble vitamin found naturally in some foods, added to foods, and sold as a supplement.

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59. The process of breaking molecules in the absence of oxygen is called ___________.

A

Photosynthesis

B

Aerobic Respiration

C

Anaerobic Respiration

D

Evapotranspiration

Biology Sub Auditor 2021
Correct Answer : C
Explanation :

Anaerobic Respiration

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60. The period of transition from childhood and adulthood is known as

A

Maturity

B

Courtship

C

Adulthood

D

Adolescence

Biology JKP SI 2022
Correct Answer : D
Explanation :

Adolescence is the period of transition between childhood and adulthood. Children who are entering adolescence are going through many changes (physical, intellectual, personality and social developmental). Adolescence begins at puberty, which now occurs earlier, on average, than in the past.

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61. Which of the following instruments is used to measure the blood pressure of the Human body?

A

Endoscope

B

Thermometer

C

Stethoscope

D

Sphygmomanometer

Biology JKP SI 2022
Correct Answer : D
Explanation :

To measure blood pressure, your doctor uses an instrument call a sphygmomanometer, which is more often referred to as a blood pressure cuff. The cuff is wrapped around your upper arm and inflated to stop the flow of blood in your artery.

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62. Lung cancer be be caused by which of the following hazardous substance?

A

Ozone

B

Nitrous Oxide

C

Asbestos Particulates

D

Mercury

Biology JKPSI 2022 CBT
Correct Answer : C
Explanation :

Asbestos particles is a hazardous substance that can cause lung cancer. · Asbestos is made up of microscopic fibers that can easily become airborne and inhaled.

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63. What is the white of the eye called?

A

Retina

B

Sclera

C

Cornea

D

Iris

Biology JKPSI 2022 CBT
Correct Answer : B
Explanation :

The sclera is the dense connective tissue of the eyeball that forms the "white" of the eye. It is continuous with the stroma layer of the cornea. The junction between the white sclera and the clear cornea is called the limbus.

The sclera ranges in thickness from about 0.3 millimeter (mm) to 1.0 mm. It is composed of fibrils (small fibers) of collagen that are arranged in irregular and interlacing bundles. The random arrangement and interweaving of these connective tissue fibers are what account for the strength and flexibility of the eyeball.

The sclera is relatively inactive metabolically and has only a limited blood supply. Some blood vessels pass through the sclera to other tissues, but the sclera itself is considered avascular (lacking blood vessels).


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64. Water available in soil for the root of plant is ____

A

Capillary Water

B

Gravitational Water

C

Hygroscopic Water

D

None of these

Biology JKPSI 2022 CBT
Correct Answer : A
Explanation :

Capillary water is the main water that is available to plants as it is trapped in the soil right next to the roots of the plant.

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65. A ligament is a fibrous connective tissue that attaches ____, and usually serves to hold structures together and keep them stable.

A

Muscles to bone

B

Bone to Bone

C

Nerve to bone

D

Muscles to Muscles

Biology JKPSI 2022 CBT
Correct Answer : B
Explanation :

A ligament is a fibrous connective tissue that attaches bone to bone, and usually serves to hold structures together and keep them stable.

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66. Which of the following is the largest bone found in human body?

A

Humerus

B

Radius

C

Femur

D

Sternum

Biology JKPSI 2022 CBT
Correct Answer : C
Explanation :

The thigh bone (Femur) is almost 19.9 inches long and is the longest bone in the human body. It runes from the hip down to around the knee area.

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67. Find the Odd One Out from the following given option

A

Heart

B

Liver

C

Gloves

D

Kidney

Biology JKPSI 2022 CBT
Correct Answer : C
Explanation :

Gloves

Correct Answered :

Wrong Answered :

68. Which of the following is the full form of RNA?

A

red blood corpuscles

B

ribosomes

C

ribonucleic acid

D

none of these

Biology JKPSI 2022 CBT
Correct Answer : C
Explanation :

ribonucleic acid

Correct Answered :

Wrong Answered :

69. Which of the following has Fruity smell?

A

Esters

B

Alcohols

C

Chloroform

D

Acid anhydride

Biology JKPSI 2022 CBT
Correct Answer : A
Explanation :

Esters

Correct Answered :

Wrong Answered :

70. Which of the following do not come under the Cetaceans group of species?

A

Fish

B

Whales

C

Porpoises

D

Dolphins

Biology JKPSI 2022 CBT
Correct Answer : A
Explanation :

Fish

Correct Answered :

Wrong Answered :

71. which of the following acid is produced by our stomach which help in digestion?

A

Sulphuric acid

B

Nitric acid

C

Ascorbic acid

D

Hydrochloric acid

Biology JKPSI 2022 CBT
Correct Answer : D
Explanation :

The stomach produces Hydrochloric acid . Hydrochloric acid helps in the digestion of food without any side effects on the stomach.

Correct Answered :

Wrong Answered :

72. Which of the following is the major pollinator?

A

Butterflies

B

Moths

C

Wasps

D

Honeybees

Biology JKPSI 2022 CBT
Correct Answer : D
Explanation :

Honey bees
Bees are the most effective insect pollinators.

Correct Answered :

Wrong Answered :

73. Which among the following can perform photosynthesis?

A

Cyanobacteria

B

Fungi

C

Human

D

None of these

Biology JKPSI 2022 CBT
Correct Answer : A
Explanation :

Some plants, green algae, and cyanobacteria can perform photosynthesis.

Correct Answered :

Wrong Answered :

74. BGG vaccination is given to prevent against which of the following diseases?

A

Tuberculosis

B

Typhoid

C

Herpes

D

AIDS

Biology JKPSI 2022 CBT
Correct Answer : A
Explanation :

BCG, or bacille Calmette-Guerin, is a vaccine for tuberculosis (TB) disease. Many foreign-born persons have been BCG-vaccinated. BCG is used in many countries with a high prevalence of TB to prevent childhood tuberculous meningitis and miliary disease.

Correct Answered :

Wrong Answered :

75. Which of the following chemical is used as antidote to cyanide poisoning, a nephroprotective agent and a antifungal drug?

A

sodium thiosulfate

B

barium hudroxide

C

blue vitriol

D

epsom salt

Biology JKPSI 2022 CBT
Correct Answer : A
Explanation :

Sodium thiosulfate is an inorganic sodium salt composed of sodium and thiosulfate ions in a 2:1 ratio. It has a role as an antidote to cyanide poisoning, a nephroprotective agent and an antifungal drug.

Correct Answered :

Wrong Answered :

76. Which of the following is the unit of nervous tissue?

A

Axone

B

Neuron

C

Gangelion

D

Cell body

Biology JKPSI 2022 CBT
Correct Answer : B
Explanation :

Neuron or nerve cell.

Correct Answered :

Wrong Answered :

77. The cells that line the small intestine release additional enzymes that finally break apart the smaller protein fragments into the individual ____

A

Carbohydrates

B

Vitamins

C

Fats

D

Amino Acids

Biology JKPSI 2022 CBT
Correct Answer : D
Explanation :

The two major pancreatic enzymes that digest proteins are chymotrypsin and trypsin. The cells that line the small intestine release additional enzymes that finally break apart the smaller protein fragments into the individual amino acids.

Correct Answered :

Wrong Answered :

78. Which among the following is the causal organism of chikenpox?

A

Varicella Zoster Virus

B

Antamoeba Histolytica

C

Vibrio Cholerae

D

Bacills Typhosus

Biology JKPSI 2022 CBT
Correct Answer : A
Explanation :

Chickenpox is a highly contagious disease caused by the varicella-zoster virus (VZV).

Correct Answered :

Wrong Answered :

79. Which of the following bacteria form Curd from milk?

A

Lactobacillus

B

Streptococcus

C

Staphylococcus

D

Yeast

Biology JKPSI 2022 CBT
Correct Answer : A
Explanation :

Lactobacillus Bacteria in Milk that changes Milk to Curd. When milk is heated to a temperature of 30-40 degrees centigrade and a small amount of old curd added to it, the lactobacillus in that curd sample gets activated and multiplies. These convert the lactose into lactic acid.

Correct Answered :

Wrong Answered :

80. Which of the following is the function of kidney?

A

extract waste from blood

B

maintain blood supply

C

keep blood sarm

D

None of these

Biology JKPSI 2022 CBT
Correct Answer : A
Explanation :

Top 5 Jobs Kidneys Do
  • Remove wastes and extra fluid. Your kidneys act like a filter to remove wastes and extra fluid from your body. 
  • Control blood pressure. Your kidneys need pressure to work properly. 
  • Make red blood cells. Your kidneys make a hormone called erythropoietin. 
  • Keep bones healthy. 
  • Control pH Levels.

Correct Answered :

Wrong Answered :

81. During sleep, the blood pressure of human beings _____

A

Increase

B

Decrease

C

First decrease and then increase

D

Remain same

Biology JKPSI 2022 CBT
Correct Answer : B
Explanation :

Decrease

Correct Answered :

Wrong Answered :

82. The saliva contains an enzyme called ____ that breaks down carbohydrates which is a complex molecule to give sugar.

A

isomerase

B

sucrase

C

kinase

D

salivary

Biology JKPSI 2022 CBT
Correct Answer : D
Explanation :

Salivary amylase is a glucose-polymer cleavage enzyme that is produced by the salivary glands.

Correct Answered :

Wrong Answered :

83. ____ is the spontaneous passage or diffusion of water or other  solvents through a semipermeable membrane.

A

Transpiration

B

Osmosis

C

Diffusion

D

Penetration

Biology JKPSI 2022 CBT VERIFIED
Correct Answer : B
Explanation :

osmosis, the spontaneous passage or diffusion of water or other solvents through a semipermeable membrane (one that blocks the passage of dissolved substances—i.e., solutes).

Correct Answered :

Wrong Answered :

84. Which of the following processes does not add CO2 to the atmosphere?

A

Volcanic eruption

B

Organic matter decay

C

Photosynthesis

D

All of these

Biology JKPSI 2022 CBT
Correct Answer : C
Explanation :

Notice that photosynthesis and respiration are essentially the opposite of one another. Photosynthesis removes CO2 from the atmosphere and replaces it with O2. Respiration takes O2 from the atmosphere and replaces it with CO2.

Correct Answered :

Wrong Answered :

85. Which among the following causes Typhoid?

A

Anopheles

B

Tubercule bacillli

C

Variola virus

D

Salmonella typhi

Biology JKPSI 2022 CBT
Correct Answer : D
Explanation :

Typhoid fever is caused by a type of bacteria called Salmonella typhi

Correct Answered :

Wrong Answered :

86. Most kidney stones are usually in the form of which among the following?

A

Sodium nitrate

B

Zinc oxide

C

Calcium oxalate

D

None of these

Biology JKPSI 2022 CBT
Correct Answer : C
Explanation :

Most kidney stones are calcium stones, usually in the form of calcium oxalate. Oxalate is a substance made daily by your liver or absorbed from your diet. Certain fruits and vegetables, as well as nuts and chocolate, have high oxalate content.

Correct Answered :

Wrong Answered :

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