McGraw-Hill Online Learning Center Test

McGraw-Hill Online Learning Center Test


1. Review the image and answer the following questions.

What condition(s) is/are the C4 pathway of carbon fixation an adaptation for?

A. conserving oxygen
B. saving carbon dioxide for light-independent reactions
C. conservation of water while providing ample CO2 for photosynthetic reactions
D. to bypass the Calvin cycle


2. How do C3 and C4 plants differ anatomically?

A. C3 leaves are generally larger and flat.
B. C4 leaves have Krantz anatomy with wreaths of bundle sheath cells.
C. C3 leaves have abundant spongy mesophyll.
D. Both "B" and "C" are correct.
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