Which of These Statements Is Generally True of Integral Membrane $\alpha$

question 35

Multiple Choice

Which of these statements is generally true of integral membrane proteins?

• A)The secondary structure in the transmembrane region consists solely of \(\alpha\)-helices or \(\beta\)-sheets.
• B)The domains that protrude on the cytoplasmic face of the plasma membrane nearly always have covalently attached oligosaccharides.
• C)They are unusually susceptible to degradation by trypsin.
• D)They can be removed from the membrane with high salt or mild denaturing agents.
• E)They undergo constant rotational motion that moves a given domain from the outer face of a membrane to the inner face and then back to the outer.

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