World-Class Sprinters Running at Top Speed Are Most Likely to _______

question 238

Multiple Choice

World-class sprinters running at top speed are most likely to _______ in the skeletal muscles used for running by the end of 30 seconds.

• A) exhaust their ability to make ATP
• B) exhaust their ability to use their mitochondria to make ATP
• C) exhaust their preformed ATP and creatine phosphate
• D) have a large reserve of creatine phosphate
• E) have a large reserve of ATP from oxidative metabolism

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Definitions:

Electron Transport

A series of chemical reactions that transfer electrons from electron donors to electron acceptors via redox reactions and couples this electron transfer with the transfer of protons (H+ ions) across a membrane.

Proton Gradient

A gradient of hydrogen ions across a membrane, often used in the process of generating ATP in cells, particularly within the mitochondria during cellular respiration.

Aerobic Respiration

A metabolic process that converts oxygen and glucose into energy in the form of ATP, water, and carbon dioxide, taking place in the mitochondria.

Lactate Fermentation

An anaerobic metabolic process by which glucose or other six-carbon sugars are converted into cellular energy and the metabolite lactate.