Lecture Week 11 - Quiz

Question 1

Binds to the actin binding site when calcium is present

Answer 1

Myosin

Question 2

Breaks a neurotransmitter down

Answer 2

Acetylcholinsterase

Question 3

Calcium binds to this in the myofibril

Answer 3

Troponin

Question 4

Carries impulse deep into the muscle fiber

Answer 4

Transverse Tubule

Question 5

Covers actin binding sites when muscle fiber is relaxed

Answer 5

Tropomyosin

Question 6

Diffuses across a synaptic cleft

Answer 6

Acetylcholine

Question 7

Lies between neuron and muscle fiber

Answer 7

Synaptic Cleft

Question 8

General term for a muscle fiber’s plasma membrane

Answer 8

Sarcolemma

Question 9

Protein with site to which is “cocked” head can bind

Answer 9

Actin

Question 10

Releases acetylcholine

Answer 10

Synaptic Vesicle

Question 11

Specific term for the sarcolemma in the neuromuscular junction

Answer 11

Motor End Plate

Question 12

Stores calcium in a muscle fiber

Answer 12

Sarcoplasmic Reticulum

Question 13

Unit of myofibril that contracts

Answer 13

Sarcomere

Question 14

When it travels, it’s called an impulse

Answer 14

Action Potential