Why Is Bound GTP Considered a "Clock"?
A) It Is $\alpha$

question 24

Multiple Choice

Why is bound GTP considered a "clock"?

• A) It is always produced and degraded in specific time intervals.
• B) It is regulated by energy.
• C) The G _\(\alpha\) receptors have intrinsic GTPase activity, hydrolyzing GTP to GDP and P_i.
• D) It spontaneously hydrolyzes in the binding site of G proteins.
• E) None of the answers is correct.

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