Which of the following is a difference between chlorophyll a and chlorophyll b?
A) Chlorophyll a is a pigment, and chlorophyll b is the enzyme that transfers excited electrons from chlorophyll a to electron carriers of the thylakoid membrane.
B) Chlorophyll a absorbs yellow light, and chlorophyll b absorbs green.
C) Chlorophyll a contains magnesium in its ring structure, whereas chlorophyll b contains iron.
D) Chlorophyll a and b absorb light energy at slightly different wavelengths.
Answer: D
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What is the fate of the two-celled pollen that
germinates on a receptive stigma?
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