Multiple Choice
Chlorophyll differs from heme because it
A) has a cyclohexene ring fused to the tetrapyrrole ring system.
B) has a 16-carbon unbranched side chain.
C) contains magnesium rather than iron.
D) has a fully saturated tetrapyrrole ring.
E) none of these
Correct Answer:

Verified
Correct Answer:
Verified
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