Which of the Following Statements About the Cytoskeleton Is True

question 55

Multiple Choice

Which of the following statements about the cytoskeleton is true?

• A) The dynamic aspect of cytoskeletal function is made possible by the assembly and disassembly of a large variety of proteins into complex aggregates.
• B) Microfilaments are structurally rigid and resist compression, whereas microtubules resist tension (stretching).
• C) Movement of cilia and flagella is the result of motor proteins causing microtubules to move relative to each other.
• D) Chemicals that block the assembly of the cytoskeleton would cause little effect on the cell's response to external signals and stimuli.
• E) Transport vesicles among the membranes of the endomembrane system produce the cytoskeleton.

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Definitions:

Poisonous Frog

A type of frog that secretes toxins through its skin as a defense mechanism against predators.

Classical Conditioning

A learning mechanism whereby two stimuli are regularly connected; the reaction, first triggered by the second stimulus, ends up being triggered by the first stimulus only.

Stimulus Generalization

A learning process in which a response to one stimulus becomes associated with other similar stimuli, leading to a similar response.

Classical Conditioning

A learning process in which a biologically potent stimulus is paired with a previously neutral stimulus to elicit a conditioned response.