Self Quiz for the C4 and CAM Pathways

Study the material in this section and then write out the answers to these question.
Do not just click on the answers and write them out. This will not test your understanding of this tutorial.

1. Is the following statement true or false?

During the C₄ pathway for fixing CO₂, CO₂ from the air combines with ribulose bisphosphate to begin the Calvin cycle. (ans)

2. Plants that live in very dry condition and, unlike other plants, open their stomata to fix CO2 only at night best describes: (ans)

a. C₄ plants
b. C₃ plants
c. CAM plants

3. C₄ and CAM pathways evolved for plants that live in _____________________ climates. (ans)

a. hot, humid
b. cold, dry
c. hot, dry

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