Which of the following occurs in the second stage of the Calvin cycle?
a. An organic molecule is reduced.
b. CO2 becomes an organic compound.
c. RuBP is formed from G3P.
d. Respiration produces CO2.
a. An organic molecule is reduced.
An organic molecule is reduced in the second stage of the Calvin cycle.
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Polyploidy in plants
A. is very common. B. allows for adaptation to diverse environments. C. may alter the levels of gene expression. D. allows humans to create plants with unusual flowers. E. All of these statements are true regarding polyploidy in plants.
A fatty acid has a(n)____ group at the end of a hydrocarbon chain
a. carbonyl group b. hydroxyl group c. phosphate group d. amino group e. carboxyl group
The enzyme nitrogenase is irreversibly inhibited by excess
a. O2. b. NO3 ?. c. N2. d. CO2. e. NH4 +.
Refer to Figure 42-2. The surface labeled 4 is:
a. dorsal. b. ventral. c. medial. d. lateral. e. frontal