The morphology of a cell influences its
A) motility.
B) metabolism.
C) surface-to-volume ratio.
D) motility and surface-to-volume ratio
Answer: D
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As a result of its involvement in a reaction, an enzyme _____.
Fill in the blank(s) with the appropriate word(s).
The urinary bladder is protected from leaking by cell-to-cell junctions called
A) desmosomes. B) tight junctions. C) gap junctions. D) plasmodesmata.
In a chemical reaction, glyceraldehyde-3-phosphate + NAD+ yields 1,3-bisphosphoglycerate + NADH. In this reaction, what happened to NAD+?
A. It served as an enzyme to catalyze the reaction, and at the end of the reaction formed NADH B. It was oxidized to form NADH C. It was activated to form NADH D. It was reduced to form NADH
The bivalves started to die one by one; only the undamaged shells remained. To keep the remaining bivalves alive, the teacher would most likely need to remove the _____
A) sea anemones B) sea star C) gastropods D) ectoprocts