7th EXAM 2024 -Photosynthesis

Front

What is the source of the electrons that are excited by sunlight in the light-dependent reactions of photosynthesis?

Back

Water

Front

What are molecules that facilitate the capture of energy from the sun by plants?

Back

Pigments

Front

What happens to the rate of photosynthesis if a plant is enclosed in an air-proof bottle?

Back

Gradually slows down to zero because CO2 is used up.

Front

What happens to the energy that plants receive from the sun during photosynthesis?

Back

It is converted to chemical energy and stored for later use.

Front

Which of the following is NOT necessary for photosynthesis to occur?

Back

Oxygen.

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll absorbs sunlight and converts it into chemical energy.

Front

What are the two main stages of photosynthesis?

Back

Light-dependent reactions and light-independent reactions (Calvin cycle).

Front

What is produced as a byproduct of photosynthesis?

Back

Oxygen.

Front

What is the primary function of the light-dependent reactions?

Back

To convert solar energy into chemical energy (ATP and NADPH).