NEET Botany 5

Question 1

Which of the following is an example of ex situ conservation?

Accepted Answer

Seed bank

Answer

Seed banks are a form of ex situ conservation where plant genetic material is preserved outside the natural habitat.

Question 2

The Calvin cycle requires how many molecules of ATP to fix one molecule of CO2 into carbohydrate?

Accepted Answer

3

Answer

Fixation of one CO2 molecule in the Calvin cycle requires 3 ATP and 2 NADPH to produce one molecule of G3P.

Question 3

Which element is specifically required for the functioning of nitrogenase enzyme in nitrogen fixation?

Accepted Answer

Molybdenum and Iron

Answer

Nitrogenase, the enzyme complex responsible for biological nitrogen fixation, requires both molybdenum and iron as essential cofactors.

Question 4

Which of the following is NOT a product of the light reactions of photosynthesis?

Accepted Answer

Glucose

Answer

Glucose is synthesized in the Calvin cycle (dark reactions) using ATP and NADPH produced by the light reactions, not directly from light reactions.

Question 5

In the alternation of generations in bryophytes, which generation is dominant?

Accepted Answer

Gametophyte

Answer

In bryophytes, the gametophyte (haploid) generation is the dominant, photosynthetic, and independent phase, while the sporophyte is dependent on the gametophyte.

NEET - National Eligibility cum Entrance Test Practice Test

NEET - National Eligibility cum Entrance Test Practice Test

NEET Botany 5