Cypress College » Biology » Biology 241 - Accelerated General Human Physiology » Summer 2021

Question #1

Depolarization of an axon during an action potential results from:

A. outward diffusion of potassium

B. inward diffusion of sodium

C. active transport of sodium inward

D. active extrusion of potassium

Question #2

Which is not true of action potentials?

A. They are all-or-none

B. The gates are voltage-gated channels

C. Sodium and potassium gates open at the same time

D. The membrane potential becomes more postitive during depolarization

Question #3

Which are possible graded potentials?

A. Action potentials and EPSP

B. EPSP and IPSP

C. Action potentials and Threshold potentials

Question #4

Cholinergic receptors bind ACh.

A. TRUE

B. FALSE

Question #5

Monoamine oxidase increases the activity of Norepinephrine.

A. FALSE

B. TRUE