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1. Where do the light-independent reactions take place in C3 photosynthesis? a)

ID: 30664 • Letter: 1

Question

1. Where do the light-independent reactions take place in C3 photosynthesis?

a) Mesophyll cells during the daytime

b) Bundle-sheath cells at night

2. Where do the light-independent reactions take place in C4 photosynthesis?

a) Mesophyll cells at night

b) Bundle-sheath cells during the daytime

3. Where do the light-independent reactions take place in CAM photosynthesis?

a) Mesophyll cells during the day

b) Bundle-sheath cells at night

4. In oceans, a large amount of photosynthesis is done by single-celled diatoms. In parts of the ocean, CO2 concentrations are very low. A few years ago, scientists discovered an adaptation in some diatoms for photosynthesizing under low CO2 conditions. Which of these might that be?

a) Smaller stomata

b) C3 photosynthesis

c) C4 photosynthesis

d) High photorespiration

Explanation / Answer

1. Mesophyll cells during daytime

2. Bundle sheath cells during daytime

3. Mesophyll cells during daytime

4. C4 photosynthesis