Fast-Twitch Muscle Fibers, Such as Those That Predominate in the Legs

question 8

Multiple Choice

Fast-twitch muscle fibers, such as those that predominate in the legs of sprinters, ____________than slow-twitch fibers, which predominate in the legs of marathon runners.

• A) produce more ATP
• B) have a greater blood supply
• C) contain fewer mitochondria
• D) contain higher levels of myoglobin

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Definitions:

Principle

A basic principle or assertion that acts as the cornerstone for a belief system or behavioral guide or supports a sequence of logical thinking.

Fires

Rapid oxidation processes that result in the emission of heat and light in varying intensities; often considered a hazard when uncontrolled.

Electrical Charge

A physical property of matter that causes it to experience a force when placed in an electromagnetic field, measurable in coulombs.

Neuron

A distinct cell type responsible for conveying nerve signals; it forms the fundamental unit of the nervous system.