Take this Exam: GCSE Biology: Photosynthesis | Zestly

Question 1

Which of the following are ways that plants use the glucose produced during photosynthesis?

Accepted Answer

Respiration to release energy

Question 2

How do plants produce amino acids for protein synthesis?

Accepted Answer

By combining glucose with nitrate ions absorbed from the soil.

Question 3

Why is starch a better storage molecule than glucose for plants?

Accepted Answer

Starch is insoluble, so it does not affect the water concentration of the cell.

Question 4

In a graph showing the rate of photosynthesis against light intensity, what does the plateau at the end of the curve indicate?

Answer

The plant has died.

Answer

Another factor, such as temperature or CO2 concentration, has become the limiting factor.

Answer

The light intensity is too high and has damaged the plant.

Answer

The plant has stopped producing oxygen.

Question 5

Which of the following is a structural use of glucose in plants?

Answer

Storage as starch in tubers.

Answer

Respiration for energy release.

Answer

Synthesis of cellulose for cell walls.

Answer

Conversion to fats and oils for seeds.