In humans, the gonads ____
a. produce gametes only
b. secrete hormones only
c. nourish the embryo only
d. produce gametes and secrete hormones only
e. produce gametes, secrete hormones, and nourish the embryo
ANSWER: d
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Which sequence reflects the locations that a secretory protein will visit on its way from its production to its secretion outside the cell?
A) rough ER, secretory vesicle, Golgi complex, ER vesicle B) rough ER, Golgi complex, smooth ER, ER vesicle C) nucleus, Golgi complex, rough or smooth ER, secretory vesicle D) smooth ER, rough ER, Golgi complex, secretory vesicle E) rough ER, ER vesicle, Golgi complex, secretory vesicle
How do C4 plants minimize photorespiration?
A. Stomata are only opened at night, storing oxygen in malate. During the day, the oxygen is released for photosynthesis. B. The light reactions and the Calvin cycle occur in different cells, so carbon dioxide does not come into contact with rubisco. C. Stomata are only opened at night, storing carbon dioxide in the stromata. During the day, the carbon dioxide is released for photosynthesis. D. The light reactions and the Calvin cycle occur in different cells, so oxygen does not come into contact with rubisco. E. Stomata are only opened at night, storing carbon dioxide in malate. During the day, the carbon dioxide is released for photosynthesis.
The difference between chromatin material and chromosomes is
A. their structure. B. the kinds of atoms that they contain. C. where you find them. D. that one is a gas and the other is a liquid.
DNA ligase is important in the replication process because it can join together segments of DNA into a single daughter strand
Indicate whether the statement is true or false