Final answer:
The opening of Na+/Ca2+ channels by cAMP does not produce a graded depolarization in the olfactory bulb.
Step-by-step explanation:
The opening of Na+/Ca2+ channels by cAMP does not produce a graded depolarization in the olfactory bulb.
Na+/Ca2+ channels are not directly activated by cAMP. Instead, cAMP acts as a second messenger in a signaling pathway, which eventually leads to the opening of Ca2+ channels and the release of neurotransmitters in the olfactory bulb. This release of neurotransmitters can then produce a graded depolarization in the olfactory bulb.
So, the statement is FALSE.