GTPase Activity Is Important in the Regulation of Signal Transduction

question 65

Multiple Choice

GTPase activity is important in the regulation of signal transduction because it

• A) increases the available concentration of phosphate.
• B) decreases the amount of G protein in the membrane.
• C) hydrolyzes GTP to GDP, thus shutting down the pathway.
• D) converts cGMP to GTP.
• E) phosphorylates protein kinases.

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