Biology MCQs

Question 1

In Photosynthesis

Accepted Answer

Light energy is converted into chemical energy

Answer

Chemical energy is converted into light energy

Answer

Chemical energy is converted into electrical energy

Answer

Light energy is converted into mechanical eneargy

Question 2

Which of the following plays an important part in photosynthesis?

Accepted Answer

Chloroplast

Answer

Centrosome

Answer

Tonoplast

Answer

Nematoblast

Question 3

Which of the following plays an important role in photosynthesis?

Accepted Answer

Chloroplast

Answer

Centrosome

Answer

Tonoplast

Answer

Nematoblast

Question 4

Which of the following gas is necessary for the process of photosynthesis?

Accepted Answer

CO2

Answer

O2

Answer

CO

Answer

N2

Question 5

Photosynthesis fulfills which of the following requirements of the autotrophic organisms?I. CarbonII. WaterIII. Energy

Accepted Answer

I and III

Answer

Only I

Answer

Only III

Answer

All I, II and III

Question 6

The gas released during the photosynthesis by the green plants is

Accepted Answer

Oxygen

Answer

Nitrogen

Answer

Water vapour

Answer

Carbon dioxide

Question 7

Gaseous exchange takes place in leaves through tiny pores for the purpose of photosynthesis. What are these pores?

Accepted Answer

Stomata

Answer

Chloroplast

Answer

Chlorophyl

Answer

Vacuole

Question 8

The photosynthesis occurs in the

Accepted Answer

Day

Answer

Night

Answer

Day and Night

Answer

None of these

Question 9

The oxygen released during photosynthesis process comes from

Accepted Answer

H2O

Answer

CO2

Answer

NO2

Answer

Glucose