Photosynthesis
Biology ⇒ Plant Biology
Photosynthesis starts at 6 and continues till grade 12.
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See sample questions for grade 11
A plant is placed in a sealed container with only water and light. After several hours, the oxygen concentration in the container increases. What process is responsible for this change?
A scientist measures the rate of photosynthesis in a plant at different temperatures. She finds that the rate increases up to 30°C, then decreases at higher temperatures. What could explain this observation?
Calculate the number of oxygen molecules produced when 12 molecules of water are split during photosynthesis.
Describe how increasing carbon dioxide concentration affects the rate of photosynthesis.
Describe one way in which C4 plants differ from C3 plants in terms of photosynthesis.
Describe the role of NADP+ in photosynthesis.
Explain the role of water in the light-dependent reactions of photosynthesis.
Explain the significance of the electron transport chain in the light-dependent reactions.
Explain why photosynthesis is considered an endothermic process.
Explain why plants appear green to the human eye.
Name the pigment that absorbs light energy for photosynthesis.
What is photolysis in the context of photosynthesis?
What is photorespiration and why is it considered wasteful for plants?
What is the main sugar produced during photosynthesis?
What is the primary function of stomata in leaves?
A plant is exposed to light of only green wavelength. Predict and explain the effect on the rate of photosynthesis.
A researcher measures the rate of photosynthesis in a plant under normal conditions and then after adding a chemical that inhibits ATP synthase. What change would you expect in the production of glucose, and why?
Calculate the number of molecules of NADPH required to produce one molecule of glucose during the Calvin cycle.
Describe the fate of the triose phosphate (G3P) molecules produced in the Calvin cycle.
Explain how the structure of the thylakoid membrane contributes to the efficiency of the light-dependent reactions of photosynthesis.
