Which compound has the highest free energy and produces the most ATP per molecule when oxidized?
A. carbon
B. lactate
C. pyruvate
D. glucose
E. acetyl CoA
Answer: D
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A botanist discovers a plant that lacks the ability to form starch grains in root cells, yet the roots still grow downward. This evidence refutes the long-standing hypothesis that _____
A) falling statoliths trigger gravitropism B) starch accumulation triggers the negative phototropic response of roots C) starch grains block the acid growth response in roots D) starch is converted to auxin, which causes the downward bending in roots E) starch and downward movement are necessary for thigmotropism
A plant has undergone a robust phase of growth; however, the roots reach a point where they can no longer provide enough nutrients to the plant. What signal(s) can the roots send to the rest of the plant that will prevent new branches from forming?
Select all correct choices. A. cytokinins B. gibberellic acid C. strigolactone D. ethylene
A(n) __________ is a virus that infects only bacteria. Fill in the blank(s) with the appropriate word(s)
Organisms that demonstrate type I
survivorship are characterized by a. high r, small offspring. b. low r, small offspring. c. low r, large offspring. d. high r, large offspring. e. low r, large population size