Please select the best answer for the following parts. Part A. The action potent

Question

Please select the best answer for the following parts.

Part A. The action potential triggers the release, into the synaptic cleft, of

a. calcium

b. acetylcholine

c. adrenaline

d. magnesium

e. ATP

Part B. Which of the following is not a membrane protein?

a. acetylcholine receptor

b. voltage-gated calcium channel

c. acetylcholinesterase

d. SERCA

e. potassium channels

Part C. Which of the following does not bind to myosin?

a. ATP

b. actin

c. myosin

d. troponin

e. myosin light chain kinase

Part D. True/False: When a muscle fiber contracts, the myosin filament shortens.

Part E. True/False: When a muscle fiber relaxes, the calcium pump hydrolyzes ATP.

Explanation / Answer

Part A: b. acetylcholine

Part B: c. acetylcholinesterase

Part C: c. myosin

Part D: False

Part E: true

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