Q: Which equation correctly represents the breakdown of ATP during muscle contraction?

$ATP \rightarrow ADP + P_i + \text{energy}$

Question 1

Which of the following is NOT a function of skeletal muscle tissue?

Accepted Answer

Production of hormones

Question 2

All muscle tissues share certain properties. Which property allows muscle to return to its original length after being stretched?

Accepted Answer

Elasticity

Question 3

Which connective tissue layer directly surrounds individual muscle fibers?

Accepted Answer

Endomysium

Question 4

A patient is unable to maintain posture and experiences frequent falls. Which function of skeletal muscle is most likely compromised?

Accepted Answer

Posture

Question 5

Which of the following best describes the role of actin and myosin in muscle contraction?

Accepted Answer

Actin and myosin slide past each other to shorten the sarcomere

Question 6

During a muscle contraction, which event occurs first at the neuromuscular junction?

Accepted Answer

Binding of acetylcholine to its receptor on the muscle fiber

Question 7

Which equation correctly represents the breakdown of ATP during muscle contraction?

Accepted Answer

$ATP ightarrow ADP + P_i + 	ext{energy}$

Question 8

Which muscle tissue type is characterized by striations, multiple nuclei, and voluntary control?

Accepted Answer

Skeletal muscle

Question 9

A marathon runner relies on muscle fibers that are resistant to fatigue and use aerobic respiration. Which type of muscle fiber predominates in their legs?

Accepted Answer

Slow oxidative (SO)

Question 10

Which structure connects muscle to bone and is essential for transmitting the force of contraction?

Accepted Answer

Tendon

Question 11

Which of the following best explains why cardiac muscle cells do not fatigue as quickly as skeletal muscle cells?

Accepted Answer

Cardiac muscle cells have abundant mitochondria and myoglobin

Question 12

Which of the following is TRUE regarding the organization of connective tissue in skeletal muscle?

Accepted Answer

Epimysium surrounds the entire muscle

Question 13

Which property of muscle tissue allows it to respond to a stimulus and generate an action potential?

Accepted Answer

Excitability

Question 14

Which of the following is a correct sequence of events in excitation-contraction coupling?

Accepted Answer

Binding of acetylcholine → Action potential travels along sarcolemma → Release of calcium from SR

Question 15

Which muscle fiber type is most likely to be predominant in the breast muscle of a chicken that does NOT fly?

Accepted Answer

Fast glycolytic (FG)

Question 16

Which of the following is the correct order of connective tissue layers from outermost to innermost in a skeletal muscle?

Accepted Answer

Epimysium → Perimysium → Endomysium

Question 17

Which of the following is a function of the fascia in muscle tissue?

Accepted Answer

Separates and supports muscles as a whole

Question 18

Which of the following statements about muscle tissue is correct?

Accepted Answer

Smooth muscle is found in the walls of hollow organs

Question 19

Which of the following best describes the role of calcium ions ($Ca^{2+}$) in muscle contraction?

Accepted Answer

Calcium ions bind to troponin, allowing actin-myosin interaction

Question 20

Which property of muscle tissue allows it to be stretched without being damaged?

Accepted Answer

Extensibility

Muscle Tissue: Structure, Function, and Types

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