Oxytocin stimulates a G protein-coupled signal transduction pathway. During signal transduction in this pathway, a G protein becomes activated. Which three molecules does G protein interact with in this pathway?

Explanation:

G protein coupled receptor is a seven trans-membrane protein, when ligand binds to the receptor ,it activate the receptor which in turn activate the G protein. In inactive form, G protein binds to GDP, but when it become active ,GDP is replaced by GTP. After activation the beta and gama sub-unit separates from the alpha sub-unit . Alpha sub-unit with bind GTP finally activates the effector protein, which then moves into the nucleus and activate or repress the transcription.

a. by using fur or clothes to trap heat energy near the body

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