AP Biologymediummcq1 pt
Ligand-gated ion channels convert a chemical signal into
A.an electrical signal by opening to ion flow
B.a protein synthesis burst
C.DNA replication
D.permanent cell division
Explanation
Core Concept
Neurotransmitter binding opens the channel; ions rush down gradients, changing membrane potential — how neurons and muscles fire.
Correct Answer
Aan electrical signal by opening to ion flow
More Unit 4: Cell Communication and Cell Cycle practice questions
- mediumWhich statement about the cell cycle's control system is correct?
- mediumA drug blocks adenylyl cyclase. Which signaling step is directly prevented?
- easyWhich type of molecule typically serves as the FIRST messenger?
- easyHow many daughter cells does one mitotic division produce?
- easyDensity-dependent inhibition refers to cells
Practice more AP Biology questions with full explanations
Practice Unit 4: Cell Communication and Cell Cycle Questions →