A&P Chpt 09: Muscles & Muscle Fibers
Authored by Lisa Monk
Biology
11th - 12th Grade
NGSS covered
Used 92+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the name of the place where a nerve meets a muscle fiber?
Nerve junction
Muscle junction
Neuromuscular junction
Cross bridge
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the sarcomere shorten (contract) ?
The myosin filaments contract
The myosin is pulled by the actin
The actin filaments contract
The actin is pulled by the myosin
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What two chemicals are necessary for muscle contraction to occur?
Niacin and Potassium
Sodium and Potassium
Calcium and ATP
Acetylcholine and Potassium
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
___ and ___ are regulatory proteins bound to actin.
Myosin and actin
Calcium and oxygen
Glycogen and hemoglobin
Troponin and tropomyosin
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Skeletal Muscle contraction is initiated when the ________ sends a message to the muscle cell.
Muscle cell
Neuron
Gland
Sarcomere
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the structure that stores calcium in the muscle cell?
Sarcoplasmic reticulum
Neuron
Myoglobin
Neuromuscular junction
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The neurotransmitter that signals muscle contraction is...
Calcium
Myosin
Actin
Ach (acetylcholine)
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