Biology, 21.03.2020 08:29, kayleewoodard
Consider a plant that grows best in bright sunlight in which seed germination is controlled by phytochromes.
Which of the following statements describe(s) the structure and function of phytochromes in this plant? Select all that apply
a. The effects of red and far-red light on phytochromes are irreversible.
b. Phytochromes absorb red light and far-red light equally when the phytochrome is in the Pir configuration.
c. The plant seeds are more likely to germinate after exposure to red light than after exposure to far-red light.
d. Phytochromes contain photoreceptors.
e. When a phytochrome in the Pfr configuration absorbs far-red light, the phytochrome reverts to the Pr configuration.
f. Far-red light stimulates the plant seeds to germinate when the phytochrome is in the Pfr configuration.
g. Phytochromes absorb red light maximally when the phytochrome is in the Pr configuration.
Answers: 3
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Consider a plant that grows best in bright sunlight in which seed germination is controlled by phyto...
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