A Component of an Important Buffer in the Human Body

question 149

Multiple Choice

A component of an important buffer in the human body is

• A) NaCl.
• B) H⁺.
• C) HCl.
• D) HCO₃⁻.
• E) H₂O.

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Definitions:

Breathing Air

The process of inhaling oxygen and exhaling carbon dioxide, essential for life in most organisms.

Arm Buds

Early stages in embryonic development during which the limbs begin to form and differentiate from the main body.

Leg Buds

Early embryonic structures that eventually develop into the legs in various animals, including humans.