The ability of histidine to buffer hydrogen ions is because histidine contains

A. a free carbon atom that accepts hydrogen ions.
B. an ionizable group.
C. bicarbonate molecules.
D. None of these answers is correct.


Answer: B

Health & Biomechanics

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Find the opposite number of –2.

A) -2 B) 2 C) – 1/2 D) 1/2 E) 0

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Define and describe the difference between the four basic components of health-related fitness: cardiorespiratory endurance, body composition, muscular flexibility, and muscular strength and endurance.

What will be an ideal response?

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Which of the following is NOT a risk of exposure to ultraviolet radiation?

A) Memory loss B) Heat stress C) Sunburn D) Skin cancer

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Which term best describes spitting up blood?

a. epistaxis b. hemoptysis c. expectoration

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