Chapter:

190+ Biology Solved MCQs

in General Science

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) , Union Public Service Commission (UPSC) , Indian Administrative Service (IAS) , Staff Selection Commission (SSC) .

Chapters

Take a Test

1.	Some plants are ‗carnivorous‘ due to their adaptation to grow in places where the soil is thin or poor in nutrients, especially nitrogen.In this context, consider the following plants: 1.Utricularia 2.Nepenthes 3.Dionaea Which of the above plant(s) is/are carnivorous?
A.	Only 2
B.	1 and 2
C.	2 and 3
D.	1, 2 and 3
Answer» D. 1, 2 and 3

2.	Sodium Potassium Which among the above plays a vital role in restoring the body fluid?
A.	1 only
B.	2 only
C.	Both 1& 2
D.	Neither 1 nor 2
Answer» C. Both 1& 2

3.	Which among the following was the first vaccine ever to be developed?
A.	Cholera
B.	Smallpox
C.	Rabies
D.	Tetanus
Answer» B. Smallpox

4.	Bowman‘s Capsule‘ works as a part of the functional unit of which among the following human physiological system?
A.	Circulatory System
B.	Respiratory System
C.	Excretory System
D.	Reproductive System
Answer» C. Excretory System

5.	Which of the following Vitamins of the ‗B-Complex‘ are correctly paired with their respective names? 1. Vitamin B2-Riboflavin 2. Vitamin B3-Niacin 3. Vitamin B7-Biotin 4. Vitamin B12-Cyanocobalamine
A.	2 and 4
B.	3 and 4
C.	1, 3 and 4
D.	All of them
Answer» D. All of them

6.	Plants which are adapted to grow in soils containing high concentration of salt are known as:
A.	Xerophytes
B.	Mesophytes
C.	Halophytes
D.	Thallophytes
Answer» C. Halophytes

7.	Which among the following have a ‗mixed heart‘ ,that is the heart in which the oxygenated and the deoxygenated blood is mixed?
A.	Birds
B.	Fishes
C.	Reptiles
D.	Nematodes
Answer» C. Reptiles

8.	Pancreas‘ functions as an: 1. Endocrine gland 2. Exocrine gland
A.	Only 1
B.	Only 2
C.	Both 1 and 2
D.	Neither 1 nor 2
Answer» C. Both 1 and 2

9.	Saffron‘ is obtained from which among the following parts of the plant?
A.	Stigma
B.	Anther
C.	Stamen
D.	Pollen
Answer» A. Stigma

10.	Which among the following factors are essential for ‗blood coagulation‘? 1.Vitamin K 2.Calcium ions (Ca++) 3.Christmas factor
A.	1 and 2
B.	1 and 3
C.	2 and 3
D.	1, 2 and 3
Answer» D. 1, 2 and 3

11.	Which among the followingis/are correctly paired: 1.Ginger:Tuber 2.Potato:Rhizome 3.Onion:Bulb
A.	Only 2
B.	Only 3
C.	Only 1
D.	1, 2 and 3
Answer» B. Only 3

12.	The bacterium ‗Escherichia coli‘ is found mainly in:
A.	Human Intestine
B.	Pteridophytes
C.	Root Nodules of leguminous plants
D.	Paddy fields for nitrogen fixation
Answer» A. Human Intestine

13.	Which among the following is not a ‗heriditary‘ disease?
A.	Thalessemia
B.	Colour-Blindness
C.	Haemophilia
D.	Leukemia
Answer» D. Leukemia

14.	Human Papilloma Virus is related to which of the following diseases?
A.	Prostate Cancer
B.	Cervical Cancer
C.	Lymphatic Filariasis
D.	Leukemia
Answer» B. Cervical Cancer

15.	The nutritional supplements Spirulina, Chorella and the Vitamin-C supplement, Dunaliella are actually:
A.	Algae
B.	Lichens
C.	Probiotics
D.	Bryophytes
Answer» A. Algae

16.	Anemophily‘ is pollination by :
A.	Birds
B.	Wind
C.	Ants
D.	Bats
Answer» B. Wind

17.	Pest-resistant cotton commonly known as ‗Bt-Cotton‘ is genetically engineered by inserting a gene from a:
A.	Bacterium
B.	Virus
C.	Microalgae
D.	Protist
Answer» A. Bacterium

18.	Penicillin‘ which is used as an antibiotic is obtained from :
A.	Bacteria
B.	Fungi
C.	algae
D.	Lichens
Answer» B. Fungi

19.	The instrument that measures arterial blood pressure is known as :
A.	Pyknometer
B.	Hypsometer
C.	Sphygmoscope
D.	Sphygmomanometer
Answer» D. Sphygmomanometer

20.	Meg-1 is an imprinted gene which finds expression only from maternal chromosomes which regulates the transfer of nutrients from the plant to the seed. This gene has been discovered in:
A.	Maize
B.	cotton
C.	jute
D.	Sugarcane
Answer» A. Maize

21.	Which of the following statements is NOT true regarding the Vitamin C?
A.	Only Vitamin C is to be taken externally, all others are produced in the human body.
B.	Vitamin C is the only vitamin which is also a hormone.
C.	Scurvy is caused by the deficiency of Vitamin C
D.	Vitamin C is a water-soluble vitamin.
Answer» B. Vitamin C is the only vitamin which is also a hormone.

22.	Which of the following tests is used for the diagnosis of ‗Colour-Blindness‘ in people ?
A.	Ishihara Test
B.	Widal Test
C.	ELISA test
D.	Rorschach test
Answer» A. Ishihara Test

23.	Which of the following artificial sweeteners is not broken down by the body and therefore it is non-caloric (no-calorie sweetener) :
A.	Aspartame
B.	Saccharin
C.	Sucralose
D.	Cyclamate
Answer» C. Sucralose

24.	The Science of using mechanical devices with human muscle skeleton and nervous systems to assist or enhance motor control lost by trauma, disease or defect is called:
A.	Gerontechnology
B.	Biomechatronics
C.	Orthotics
D.	Bionics
Answer» B. Biomechatronics

25.	Consider the following: Waste products HormonesIons Circulation of blood is responsible for transport of which among the above in our bodies?
A.	Only 1
B.	1 & 2
C.	2 & 3
D.	1, 2 & 3
Answer» D. 1, 2 & 3

190+ Biology Solved MCQs

Some plants are ‗carnivorous‘ due to their adaptation to grow in places where the soil is thin or poor in nutrients, especially nitrogen.In this context, consider the following plants: 1.Utricularia 2.Nepenthes 3.Dionaea Which of the above plant(s) is/are carnivorous?

Sodium Potassium Which among the above plays a vital role in restoring the body fluid?

Which among the following was the first vaccine ever to be developed?

Bowman‘s Capsule‘ works as a part of the functional unit of which among the following human physiological system?

Which of the following Vitamins of the ‗B-Complex‘ are correctly paired with their respective names? 1. Vitamin B2-Riboflavin 2. Vitamin B3-Niacin 3. Vitamin B7-Biotin 4. Vitamin B12-Cyanocobalamine

Plants which are adapted to grow in soils containing high concentration of salt are known as:

Which among the following have a ‗mixed heart‘ ,that is the heart in which the oxygenated and the deoxygenated blood is mixed?

Pancreas‘ functions as an: 1. Endocrine gland 2. Exocrine gland

Saffron‘ is obtained from which among the following parts of the plant?

Which among the following factors are essential for ‗blood coagulation‘? 1.Vitamin K 2.Calcium ions (Ca++) 3.Christmas factor

Which among the followingis/are correctly paired: 1.Ginger:Tuber 2.Potato:Rhizome 3.Onion:Bulb

The bacterium ‗Escherichia coli‘ is found mainly in:

Which among the following is not a ‗heriditary‘ disease?

Human Papilloma Virus is related to which of the following diseases?

The nutritional supplements Spirulina, Chorella and the Vitamin-C supplement, Dunaliella are actually:

Anemophily‘ is pollination by :

Pest-resistant cotton commonly known as ‗Bt-Cotton‘ is genetically engineered by inserting a gene from a:

Penicillin‘ which is used as an antibiotic is obtained from :

The instrument that measures arterial blood pressure is known as :

Meg-1 is an imprinted gene which finds expression only from maternal chromosomes which regulates the transfer of nutrients from the plant to the seed. This gene has been discovered in:

Which of the following statements is NOT true regarding the Vitamin C?

Which of the following tests is used for the diagnosis of ‗Colour-Blindness‘ in people ?

Which of the following artificial sweeteners is not broken down by the body and therefore it is non-caloric (no-calorie sweetener) :

The Science of using mechanical devices with human muscle skeleton and nervous systems to assist or enhance motor control lost by trauma, disease or defect is called:

Consider the following: Waste products HormonesIons Circulation of blood is responsible for transport of which among the above in our bodies?

Which among the following is not among Micronutrients required for plants?

Why do the bacteria develop resistance after slowly being exposed to a particular antibiotic? Due to mutation in genes Due to Horizontal Gene Transfer Due to Vertical Gene Transfer Choose the correct option:

If a person wants to increase the level of good Cholesterol in his / her body, which among the following you would advise? 1. Increase the use of trans fatty acids in diet 2. Stop smoking 3. Consumption of omega-3 fatty acids Choose the correct option:

How does calcium carbide ripen mangoes?

Which among the following is the edible part in Rice?

Late Hargobind Khorana had received Nobel Prize in physiology in 1968, for work on which among the following?

A person with ―Bombay Blood group‖ can receive blood from a person who is from____?

What is the average life of the Red Blood corpuscles?

Daps one‖ immunotherapy is related to which among the following diseases?

What is PRINT (Particle Replication in Non-wetting Templates) Technology ?

The vaccine of which of the following diseases was not included in the Expanded Programme on Immunization (EPI) initiated by the Government of India in 1978?

The term Cyberknife is most closely associated with which among the following?

Deposition of which among the following in the joints, causing inflammation is reason of Gout, one of the forms of arthritis?

The phenomenon in which seeds germinate and seedlings grow while still attached to their mother plant before dropping down to establish themselves or be transported elsewhere, is most commonly found in which among the following plants?

The hormonal activities of which of the following substances were discovered while studying ―foolish seedling‖ disease in rice?

The useful part of Zingiber officinale is ____?

Beta-Keratin is found in which among the following in abundance?

Antipyretic medicines are used for which among the following purposes?

A health problem which is characterized by inability of the bone marrow to produce the red blood cells is placed in which among the following groups?

In context with the connective tissues, which among the following connect join Bones to Bones?

Brachytherapy is commonly used as an effective treatment for cervical, prostate, breast, and skin cancer in many parts of the world. Why Brachytherapy is an offshoot of which among the following forms of Cancer Treatment?

From the point of view of evolution of living organisms, which of the following set of animals is a correct sequence of evolution?

Which among the following live tissues of the Human Eye does not have blood vessels?

Which among the following is involved in the Research on Desert Flora and Fauna?

The Indian Pipe Plant or Monotrapa can be best placed in which among the following groups?

Some plants are ‗carnivorous‘ due to their adaptation to grow in places where the soil is thin or poor in nutrients, especially nitrogen.In this context, consider the following plants:
1.Utricularia
2.Nepenthes
3.Dionaea
Which of the above plant(s) is/are carnivorous?

Sodium
Potassium
Which among the above plays a vital role in restoring the body fluid?

Which of the following Vitamins of the ‗B-Complex‘ are correctly paired with their respective names?
1. Vitamin B2-Riboflavin
2. Vitamin B3-Niacin
3. Vitamin B7-Biotin
4. Vitamin B12-Cyanocobalamine

Pancreas‘ functions as an:
1. Endocrine gland
2. Exocrine gland

Which among the following factors are essential for ‗blood coagulation‘?
1.Vitamin K
2.Calcium ions (Ca++)
3.Christmas factor

Which among the followingis/are correctly paired:
1.Ginger:Tuber
2.Potato:Rhizome
3.Onion:Bulb

Consider the following:
Waste products
HormonesIons
Circulation of blood is responsible for transport of which among the above in our bodies?

Why do the bacteria develop resistance after slowly being exposed to a particular antibiotic?
Due to mutation in genes
Due to Horizontal Gene Transfer
Due to Vertical Gene Transfer
Choose the correct option:

If a person wants to increase the level of good Cholesterol in his / her body, which among the following you would advise?
1. Increase the use of trans fatty acids in diet
2. Stop smoking
3. Consumption of omega-3 fatty acids
Choose the correct option:

26.	Which among the following is not among Micronutrients required for plants?
A.	Molybdenum
B.	Magnesium
C.	Manganese
D.	Zinc
Answer» B. Magnesium

27.	Why do the bacteria develop resistance after slowly being exposed to a particular antibiotic? Due to mutation in genes Due to Horizontal Gene Transfer Due to Vertical Gene Transfer Choose the correct option:
A.	Only 1
B.	Only 1 & 2
C.	Only 2 & 3
D.	1, 2 & 3
Answer» B. Only 1 & 2

28.	If a person wants to increase the level of good Cholesterol in his / her body, which among the following you would advise? 1. Increase the use of trans fatty acids in diet 2. Stop smoking 3. Consumption of omega-3 fatty acids Choose the correct option:
A.	1, 2 & 3
B.	Only 1 & 3
C.	Only 2 & 3
D.	Only 3
Answer» C. Only 2 & 3

29.	How does calcium carbide ripen mangoes?
A.	It reacts with moisture and releases Ethylene
B.	It reacts with moisture and releases Acetaldehyde, which in turn releases ethylene
C.	It reacts with starch and releases Acetylene
D.	It reacts with moisture and releases Ethyne
Answer» A. It reacts with moisture and releases Ethylene

30.	Which among the following is the edible part in Rice?
A.	Fruit
B.	Cotyledons
C.	Endosperm
D.	Embryo
Answer» C. Endosperm

31.	Late Hargobind Khorana had received Nobel Prize in physiology in 1968, for work on which among the following?
A.	Mechanisms of the action of hormones
B.	Chemical Structure of antibodies
C.	Interpretation of the genetic code
D.	Structural and functional organization of the cell
Answer» C. Interpretation of the genetic code

32.	A person with ―Bombay Blood group‖ can receive blood from a person who is from____?
A.	A Group or B Group
B.	AB Group
C.	O Group
D.	None of them
Answer» D. None of them

33.	What is the average life of the Red Blood corpuscles?
A.	100-120 days
B.	120-140 days
C.	80-95 days
D.	70-85 days
Answer» A. 100-120 days

34.	Daps one‖ immunotherapy is related to which among the following diseases?
A.	AIDS
B.	Tuberculosis
C.	Leprosy
D.	Malaria
Answer» C. Leprosy

35.	What is PRINT (Particle Replication in Non-wetting Templates) Technology ?
A.	It‘s a technology related to genetic engineering and refers to duplication of the DNA codes
B.	It‘s a technology related to climate change and refers to a new technique of combating air pollution
C.	It‘s a new technology related to synthesis of artificial blood
D.	None of them
Answer» C. It‘s a new technology related to synthesis of artificial blood