Question 1

What is the letter associated with the dark bands in a sarcomere?

Accepted Answer

A)   I
B)   A
C)   Z
D)   M
E)   HF) A) and B)
G) B) and E)

Question 2

Which of the following structures has the active sites to which the heads of the thick filaments will bind?

Accepted Answer

A)   Actin
B)   Troponin
C)   Tropomyosin
D)   Myosin
E)   SarcoplasmF) D) and E)
G) A) and D)

Question 3

Heavy breathing to compensate for an oxygen debt helps the body convert lactate to glucose.

Accepted Answer

A) True 
 B)False

Question 4

The return of a contracted muscle fiber to its resting length is an active (energy requiring) process.

Accepted Answer

A) True 
 B)False

Question 5

The plasma membrane of a skeletal muscle fiber is called the ________.

Accepted Answer

The answer of The plasma membrane of a skeletal muscle...

Question 6

Which letter is associated with a zone (in a relaxed muscle)  that is a little more lightly shaded because only thick filaments are present?

Accepted Answer

A)   I
B)   A
C)   M
D)   Z
E)   HF) C) and E)
G) B) and C)

Question 7

The branch of the nervous system that helps govern smooth muscle contraction is the ________ nervous system.

Accepted Answer

A)   autonomic
B)   somaticC) A) and B)
D) undefined

Question 8

During skeletal muscle contraction, more force is created when more motor units are activated.

Accepted Answer

A) True 
 B)False  True

Question 9

If someone is engaged in six minutes of vigorous exercise, nearly all of the ATP used is generated by phosphate transfer.

Accepted Answer

A) True 
 B)False

Question 10

The action potential of a muscle fiber occurs

Accepted Answer

A)   at the end plate.
B)   along the sarcolemma and down the T-tubules.
C)   within the sarcoplasmic reticulum.
D)   in the mitochondria.E) B) and C)
F) B) and D)

Question 11

Skeletal muscle contraction requires large amounts of energy in the form of ________ in order to complete the sequence of cyclic events that lead to sarcomere shortening.

Accepted Answer

The answer of Skeletal muscle contraction requires large amounts of...

Question 12

The structure responsible for attaching muscle to bone is a

Accepted Answer

A)   sphincter.
B)   ligament.
C)   fascia.
D)   tendon.
E)   myofibril.F) None of the above
G) C) and D)

Question 13

Which protein makes up the thick filaments?

Accepted Answer

A)   Myosin
B)   Actin
C)   Tropomyosin
D)   Troponin
E)   MyopathyF) None of the above
G) A) and C)

Question 14

One of the most crucial factors in the development of fatigue appears to be a depletion of ATP.

Accepted Answer

A) True 
 B)False

Question 15

When a muscle is isometrically contracted, its length ________ change.

Accepted Answer

A)   does
B)   does notC) A) and B)
D) undefined

Question 16

The presence of mitochondria and myoglobin facilitate ________ respiration in muscle cells.

Accepted Answer

A)   aerobic
B)   anaerobicC) A) and B)
D) undefined

Question 17

Which letter is associated with the light band and contains thin filaments only?

Accepted Answer

A)   I
B)   A
C)   M
D)   Z
E)   HF) C) and D)
G) All of the above

Question 18

Phosphate transfer is used for

Accepted Answer

A)   immediate ATP needs and is dependent on oxygen.
B)   immediate ATP needs and is not dependent on oxygen.
C)   long-term ATP needs and is dependent on oxygen.
D)   long-term ATP needs and is not dependent on the presence of oxygen.E) C) and D)
F) All of the above

Question 19

During which phase of the crossbridge cycle is ATP split into ADP and Pi?

Accepted Answer

A)   Immediately preceding the detachment of the myosin head
B)   Immediately preceding the resetting of the myosin head
C)   Immediately preceding the power strokeD) A) and B)
E) A) and C) B

Question 20

Glycolysis is an

Accepted Answer

A)   aerobic process that occurs in the cytosol.
B)   aerobic process that occurs in the mitochondria.
C)   anaerobic process that occurs in the cytosol.
D)   anaerobic process that occurs in the mitochondria.E) B) and D)
F) A) and D) C

Exam 10: Muscle Tissue

What is the letter associated with the dark bands in a sarcomere?

Correct AnswerverifiedShow Answer

Which of the following structures has the active sites to which the heads of the thick filaments will bind?

Correct AnswerverifiedShow Answer

Heavy breathing to compensate for an oxygen debt helps the body convert lactate to glucose.

Correct AnswerverifiedShow Answer

The return of a contracted muscle fiber to its resting length is an active (energy requiring) process.

Correct AnswerverifiedShow Answer

The plasma membrane of a skeletal muscle fiber is called the ________.

Correct AnswerverifiedShow Answer

Which letter is associated with a zone (in a relaxed muscle) that is a little more lightly shaded because only thick filaments are present?

Correct AnswerverifiedShow Answer

The branch of the nervous system that helps govern smooth muscle contraction is the ________ nervous system.

Correct AnswerverifiedShow Answer

During skeletal muscle contraction, more force is created when more motor units are activated.

Correct AnswerverifiedTrue

If someone is engaged in six minutes of vigorous exercise, nearly all of the ATP used is generated by phosphate transfer.

Correct AnswerverifiedShow Answer

The action potential of a muscle fiber occurs

Correct AnswerverifiedShow Answer

Skeletal muscle contraction requires large amounts of energy in the form of ________ in order to complete the sequence of cyclic events that lead to sarcomere shortening.

Correct AnswerverifiedShow Answer

The structure responsible for attaching muscle to bone is a

Correct AnswerverifiedShow Answer

Which protein makes up the thick filaments?

Correct AnswerverifiedShow Answer

One of the most crucial factors in the development of fatigue appears to be a depletion of ATP.

Correct AnswerverifiedShow Answer

When a muscle is isometrically contracted, its length ________ change.

Correct AnswerverifiedShow Answer

The presence of mitochondria and myoglobin facilitate ________ respiration in muscle cells.

Correct AnswerverifiedShow Answer

Which letter is associated with the light band and contains thin filaments only?

Correct AnswerverifiedShow Answer

Phosphate transfer is used for

Correct AnswerverifiedShow Answer

During which phase of the crossbridge cycle is ATP split into ADP and Pi?

Correct AnswerverifiedB

Glycolysis is an

Correct AnswerverifiedC

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True

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During which phase of the crossbridge cycle is ATP split into ADP and P_i?

Correct Answer
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B

Correct Answer
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C