Question 1

During anaerobic respiration, pyruvic acidmolecules are converted into molecules of ____________.

Accepted Answer

The answer of During anaerobic respiration, pyruvic acidmolecules are converted...

Question 2

What structures form a motor unit?

Accepted Answer

A)   Several motor neurons and one muscle fiber
B)   One motor neuronand several muscle fibers
C)   Several motor neurons and several muscle fibersD) All of the above
E) A) and C)

Question 3

What is a description of the region known as the motor end plate?

Accepted Answer

A)   It has many openings leading into transverse tubules.
B)   Mitochondria are abundant.
C)   Synaptic vesicles are abundant.
D)   It functions to release neurotransmitter molecules.E) B) and D)
F) A) and B)

Question 4

In skeletal muscle fibers, what is the source of the calcium ions that are released into the sarcoplasm to bind with troponin, resulting in contraction?

Accepted Answer

A)   Extracellular fluid
B)   Sarcoplasmic reticulum
C)   Mitochondria
D)   Golgi apparatusE) B) and D)
F) A) and B)

Question 5

Which statement describes multiunit smooth muscle?

Accepted Answer

A)   Composed of sheets of muscle cells
B)   Displays rhythmicity
C)   Found within the walls of the stomach and intestines
D)   Responds to stimulation by neurons and certain hormonesE) A) and D)
F) B) and D)

Question 6

What forms the myofibrils of skeletal muscle cells?

Accepted Answer

A)   Actin and myosin
B)   ATP and ADP
C)   Troponin and tropomyosin
D)   Fascia and tendons
E)   Perimysium and endomysiumF) C) and E)
G) B) and C)

Question 7

The enlargement of muscle fibers as a result of exercise is called _______________.

Accepted Answer

The answer of The enlargement of muscle fibers as a...

Question 8

What is an alternate name for a skeletal muscle cell?

Accepted Answer

A)   Myofibril
B)   Myofilament
C)   Myosin
D)   Muscle fiberE) None of the above
F) All of the above

Question 9

Which of the following is NOT a basic component of a lever?

Accepted Answer

A)   Rigid bar
B)   Fulcrum
C)   Force
D)   Handle
E)   ResistanceF) B) and C)
G) B) and E)

Question 10

Skeletal muscle cells appear striated because of the presence of what parallel bundles?

Accepted Answer

A)   Sarcomeres
B)   Z lines
C)   Myosin
D)   Myofibrils
E)   Transverse tubulesF) B) and E)
G) D) and E)

Exam 8: Muscular System

What is an alternate name for a skeletal muscle cell?

Correct Answer
verified

What forms the myofibrils of skeletal muscle cells?

Correct Answer
verified

What structures form a motor unit?

Correct Answer
verified

In skeletal muscle fibers, what is the source of the calcium ions that are released into the sarcoplasm to bind with troponin, resulting in contraction?

Correct Answer
verified

The enlargement of muscle fibers as a result of exercise is called _______________.

Correct Answer
verified

What is a description of the region known as the motor end plate?

Correct Answer
verified

During anaerobic respiration, pyruvic acidmolecules are converted into molecules of ____________.

Correct Answer
verified

Skeletal muscle cells appear striated because of the presence of what parallel bundles?

Correct Answer
verified

Which statement describes multiunit smooth muscle?

Correct Answer
verified

Which of the following is NOT a basic component of a lever?

Correct Answer
verified

Exam 8: Muscular System

What is an alternate name for a skeletal muscle cell?

Correct AnswerverifiedShow Answer

What forms the myofibrils of skeletal muscle cells?

Correct AnswerverifiedShow Answer

What structures form a motor unit?

Correct AnswerverifiedShow Answer

In skeletal muscle fibers, what is the source of the calcium ions that are released into the sarcoplasm to bind with troponin, resulting in contraction?

Correct AnswerverifiedShow Answer

The enlargement of muscle fibers as a result of exercise is called _______________.

Correct AnswerverifiedShow Answer

What is a description of the region known as the motor end plate?

Correct AnswerverifiedShow Answer

During anaerobic respiration, pyruvic acidmolecules are converted into molecules of ____________.

Correct AnswerverifiedShow Answer

Skeletal muscle cells appear striated because of the presence of what parallel bundles?

Correct AnswerverifiedShow Answer

Which statement describes multiunit smooth muscle?

Correct AnswerverifiedShow Answer

Which of the following is NOT a basic component of a lever?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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