MCQ Biology - Learning Biology through MCQs

Biology Multiple Choice Questions and Answers for Different Competitive Exams

Practice Test on Living World -Biological Classification

Biological ClassificationPractice Test on Living World -Biological Classification
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NEET MCQ on Environmental Issues | Ecology MCQ

1. Which of the following statements is not valid for aerosols?

A) They alter rainfall and monsoon patterns

B)They cause increased agricultural productivity

C)They have negative impact on agricultural land

D)They are harmful to human health

2. A lake which is rich in inorganic waste may result in

A) increased population of aquatic organisms due to minerals

B)drying of the lake due to algal bloom

C)increased population of fish due to lots of nutrients

D)morality of fish due to lack of oxygen

3. Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from

A) domestic sewage

B) dairy industry

C)petroleum industry

D)sugar industry 

4. The high DDT concentration in aquatic food chain shall occur in

A) phytoplankton

B)seagull

C) crab

D)eel

5. Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers

A) Ammonia

B) Methane

C)Nitrous oxide

D)Ozone

6. Joint Forest Management concept was introduced in India during

A) 1980s

B)1990s

C)1960s

D)1970s

7. A river with an inflow of domestic sewage rich in organic waste may result in

A)an increased production of fish due to biodegradable nutrients

B)death of fish due to lack of oxygen

C)drying of the river very soon due to algal bloom

D)increased population of aquatic food web organisms

8. Acid rain is caused by increase in the atmospheric concentration of

A)CO2 and CO

B)O3  and dust

C)SO3 and NO2

D)SO3  and CO

9. Eutrophication  of water bodies leading to killing of fishes is mainly due to non availability of

A)essential minerals

B)oxygen

C)food

D)light

10. The UN Conference of Parties on climate change in the year 2012 was held at

A) Lima

B) Warsaw

C) Durban

D) Doha

NEET MCQ on Environmental Issues   | Ecology MCQ
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Answers

1. B)They cause increased agricultural productivity

2. D)morality of fish due to lack of oxygen

3. C)petroleum industry

4. B)seagull

5. D)Ozone

6. A) 1980s

7. B)death of fish due to lack of oxygen

8. C)SO3 and NO2

9. B)oxygen

10. D) Doha

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Multiple Choice Questions on Calvin Cycle

MCQ on Calvin Cycle, Dark reaction,or C3 Cycle)

1. Which of the following is the correct statement regarding Calvin Cycle?

a) it cannot occur during day time

b) it is light dependent

c) it is light independent

d) it occurs rapidly at night

MCQ on Calvin Cycle

2. The rate limiting step of Calvin cycle is catalyzed by

a) RuBisCO

b) Phosphoglycerate kinase

c) Ribose phosphate isomerase

d) transketolase


3. How many phosphoglyceraldehyde is required to form a glucose molecule?

a) 1

b) 2

c) 3

d) 4


4. Which of the following is involved in the activation of RuBisCO?

a) K+

b) Zn2+

c) Mg2+

d) Ca2+


5. How many ATP is required for the synthesis of 1 molecule of glucose?

a) 6

b) 12

c) 18

d) 24


6. How many NADPH is required for the synthesis of 1 molecule of glucose?

a) 6

b) 12

c) 18

d) 24


7. All the following enzymes are involved in regeneration of RuBP except   

a) Phosphoglycerate kinase

b) Transketolase

c) Ribose phosphate isomerase

d) Phosphoribulokinase


8. How many ATP is required for the regeneration of RuBP in Calvin cycle?

a) 6

b) 12

c) 18

d) 24

9. The first stable compound formed in Calvin Cycle is

a) Glyceraldehyde 3 phosphate

b) 1,3 bi phosphoglycerate

c) 3-phosphoglyceric acid

d) Ribulose bi phosphate


10. Calvin cycle is also called as   

a) Reductive pentose phosphate cycle

b) CBB cycle

c) Dark reaction

d) All of these

 Try This MCQs: MCQ on Photosynthesis

Practice Test on Photosynthesis

Answers

1. c) it is light independent

2. a) RuBisCO

3. b) 2

4. c) Mg2+

5. c) 18

6. b) 12

7. a) Phosphoglycerate kinase

8. a) 6

9. c) 3-phosphoglyceric acid

10. d) All of these


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NEET Biology Multiple Choice Questions and Answers I Class 11 and Class 12 Biology MCQ & Online Tests


NEET Biology Multiple Choice Questions and Answers           NEET Biology Previous Questions
NEET BIOLOGY MCQ 2020


Unit: 1  Diversity in Living World
Multiple Choice Questions (MCQ)
Online Test
Kingdom Animalia 
Unit:2 Structural Organisation in Animals and Plants
Multiple Choice Questions (MCQ)
Online Test
Angiosperms
 
Unit: 3 Cell Structure and Function
Multiple Choice Questions (MCQ)
Online Test
Biomolecules (Set 1/ Set 2)


Unit: 4  Plant Physiology
Multiple Choice Questions (MCQ)
Online Test
  • Plant-Water Relations

 
Unit:5  Human Physiology
Multiple Choice Questions (MCQ)
Online Test
Unit: 6 Reproduction
Multiple Choice Questions (MCQ)
Online Test
 
Unit: 7 Genetics and Evolution
Multiple Choice Questions (MCQ)
Online Test
Unit: 8 Biology and Human Welfare
Multiple Choice Questions (MCQ)
Online Test

 
Unit: 9 Biotechnology and Its Applications
Multiple Choice Questions (MCQ)
Online Test
      Biotechnology MCQ

 
Unit: 10 Ecology and Environment
Multiple Choice Questions (MCQ)
Online Test


 
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