Question 5 (1 point) During vigorous workouts, many people complain of “feeling

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Question 5 (1 point)

During vigorous workouts, many people complain of “feeling the burn.” Although the burn is primary due to high K levels around muscles, many people once believed that pyruvic acid is broken down into lactic acid when insufficient ___ is available during exercise and this substance caused the muscle ache associated with “feeling the burn.”

Question 5 options:

Nitric oxide

Carbon Dioxide

Oxygen

Glucose

ATP

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Question 6 (1 point)

During vigorous workouts, many people complain of “feeling the burn.” Although the burn is primary due to high K levels around muscles, many people once believed that pyruvic acid is broken down into ______ when insufficient oxygen is available during exercise and this substance caused the muscle ache associated with “feeling the burn.”

Question 6 options:

Answer not listed

Steric acid

Hydrochloric acid (HCl)

Sodium hydroxide (NaOH)

Lactic acid

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Question 7 (1 point)

The Smooth Endoplasmic reticulum of a skeletal muscle is also known as its:

SELECT ONE ACCURATE STATEMENT

Question 7 options:

answer not listed

epimysium

sarcolemma

endomysium

perimysium

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Question 8 (1 point)

Which statement(s) correctly describe(s) the term “muscle tone?”

SELECT ANY ACCURATE STATEMENTS

Question 8 options:

Ability of a muscle to respond to stimuli

A state of partial contraction in an otherwise “relaxed” muscle

Muscle tone is the same thing as “excitability”

Condition which occurs after intense workouts

Ability of a muscle to cause movements

Nitric oxide

Carbon Dioxide

Oxygen

Glucose

ATP

Explanation / Answer

5) oxygen

Lactic acid accumulates in the must!led when this is unavailability of oxygen leading to accumulation of lactic acid increases acidity creating burning sensation.

6) Lactic acid

Lactic acid is good sources of energy during exercise as it requires less oxygen.

7) not listed

Sarcoplasmic reticulum is also called as smooth endoplasmic reticulum of skeletal muscle they regular calcium levels in the muscles.

8) a state of partial contraction in otherwise relaxed muscle

Muscle tone is describe as amount of contraction in resting muscle.

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