Cell Signaling Quiz

What are the four different types of intercellular signaling?

What is the difference between synapse and endocrine signaling?

What are molecular switches in intracellular signaling?

What is the role of feedback loops in cell signaling?

What happens during adaptation or desensitization in cells?

What are the differences between intracellular and cell-surface receptors?

How does nitric oxide function as a signal molecule?

What are the three main types of cell-surface receptors?

What is the role of G-protein-coupled receptors (GPCRs) in signaling?

• They act as ion channels.

• They interact with ligands.

• They are involved in gene transcription.

• They are only found in the cytoplasm.

What happens when GPCRs are activated?

• They inhibit G proteins.

• They act like guanine nucleotide exchange factors.

• They directly phosphorylate target proteins.

• They bind to DNA.