When an Individual Is Exercising Heavily and When the Muscle

question 60

Multiple Choice

When an individual is exercising heavily and when the muscle becomes oxygen-deprived, muscle cells convert pyruvate to lactate. What happens to the lactate in skeletal muscle cells?

• A) It is converted to NAD⁺.
• B) It produces CO₂ and water.
• C) It is taken to the liver and converted back to pyruvate.
• D) It reduces FADH₂ to FAD⁺.
• E) It is converted to alcohol.

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Definitions:

Frequency Distributions

A tabular or graphical representation showing the frequencies of different values in a dataset.

Friedman Test

A non-parametric analysis method employed to identify treatment variations over numerous testing trials.

Matched Pairs Experiment

An experimental design where subjects are paired based on certain criteria, and each pair is divided between treatment and control groups to measure the effect of an intervention.

Ordinal Data

Refers to a type of data in statistics that represents categories with a meaningful order, but the differences between the categories cannot be quantified.