What do g protein coupled receptors and steroid hormone receptors have in common (circle one)? a) they are enzymes. b) they act through g-proteins. c) they result in production of diffusible second messengers. d) they bind ligand specifically and reversibly via noncovalent interactionse) they bind hydrophobic ligands.

c) They result in production of diffusible second messengers.

Explanation:

In G protein coupled receptors and steroid hormone receptors, when a ligand binds to these receptors, it activates one or more signal transduction systems, which initiate different cascades of events that alter the concentration of intracellular second messengers which stimulates other cascade of reactions.

acceleration = 18/3 = 6 m/s per second.

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-lavira: )

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