Which of the following functional groups is associated with a release of energy that cells can harvest to perform many functions?
A. amino
B. phosphate
C. sulfhydryl
D. hydroxyl
E. carboxyl
Ans: B. phosphate
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Which of the following options lists the stages in cellular respiration in the correct order?
A) oxidative Phosphorylation, the citric acid cycle, and glycolosis B) The citric acid cycle, oxidative Phosphorylation, and glycolosis C) glycolosis, oxidative Phosphorylation, the citric acid cycle D) glycolosis, the citric acid cycle, oxidative Phosphorylation E) oxidative Phosphorylation, glycolosis, The citric acid cycle
In a phototropism, auxin moves to the ____ side of the stem and causes cell ____
a. shade; elongation b. sun; elongation c. sun; division d. shade; division e. shade; shrinkage
A gene that can cause cancer when present in a single copy in a cell is called a(n)
A) oncogene. B) tumor-suppressor gene. C) proto-oncogene.
Which of the following statements DOES NOT characterize decomposers?
A. They play an important role in nutrient cycling. B. They break down wastes. C. They release nutrients that other organisms can use. D. They feed on nonliving organic matter. E. They synthesize organic molecules.