Leaves of many plants change colors in the fall because
A) the cooler weather causes plants to produce more of the accessory photosynthetic pigments.
B) chlorophyll in the leaves degrades with shorter days and cooler temperatures.
C) the decrease in daylight hours causes the plant to produce more of the accessory photosynthetic pigments.
D) plants produce more chlorophyll.
E) All answers are correct.
Correct Answer:
Verified
Q2: What is released at each step of
Q15: The energy source for photosynthesis is
A)oxygen.
B)sunlight.
C)carbon dioxide.
D)chlorophyll.
E)glucosE.
Q16: Which does not usually increase in overall
Q18: Organisms that make their own organic compounds
Q19: The reactions of photosynthesis are summarized as
A)6CO2
Q21: The sea slug Elysia chlorotica benefits from
Q22: The Calvin cycle
A)is a cyclic pathway that
Q23: Tiny openings in the epidermis of the
Q24: Burning wood is a reverse reaction of
Q25: In photosynthesis,the oxygen atoms in H2O are
A)energized.
B)reduced.
C)reformed
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