Multiple Choice Quiz | Paper 1 and 2 | Photosynthesis

1. An experiment is set up with four test tubes as shown in the diagram below. All four test tubes are left in sunlight for 6 hours. 

Which test tube would contain the least amount of dissolved carbon dioxide after 6 hours?

2. The diagram below shows a palisade mesophyll cell found in the leaves of plants.

In which region of the cell would starch be stored? 

3. The glucose molecules formed during photosynthesis have which form of energy stored within them?

4. Which row of the table below shows the correct effects of deficiencies of essential minerals for plant growth?

5. Which of the following options is the best explanation for the role of chlorophyll in photosynthesis?
Chlorophyll…

6. A student sets up an experiment to measure the rate of oxygen production of an aquatic plant when it is photosynthesizing.
The student repeated the experiment several times to calculate the average amount of oxygen collected.
Which two factors should be kept constant during the student’s experiment?

7. Which of the following correctly identifies some of the molecules produced from the glucose synthesized by photosynthesis?

8. The diagram below shows how the rate of photosynthesis is affected by different conditions.

What of the following correctly identifies the limiting factor for photosynthesis at the three points on the graph?

9. Two test tubes are set up with two similar leaves inside them, as shown in the diagram below.
One test tube is exposed to light, while the other is kept in the dark.

The test tubes are left for 4 hours.
What color will the hydrogen carbonate indicator solution be in each test tube?

10. A student sets up a photosynthesis experiment.
A plant with striped leaves (similar to the one shown below) was kept in bright light for four hours.

A leaf was removed from the plant and treated with ethanol in hot water to remove chlorophyll before iodine was used to test for starch.
Which diagram shows the result of the test?

11. The following could be used to write a balanced symbol equation for photosynthesis.

1.        6 CO2 + 6 H2O
2.       CO2 + 6 H2O
3.       Light and chlorophyll
4.       C6H12O6 + 6 O2
5.       6 C6H12O6 + 6 O2

Which of the following shows the correct balanced chemical equation for photosynthesis?

12. The diagram below shows a cross-section through a leaf as seen under a microscope.

In which part of the leaf would the concentration of carbon dioxide be lowest on a warm, sunny day?