Which of the Following Statements Does NOT Describe a PH

question 23

Multiple Choice

Which of the following statements does NOT describe a pH buffer?

• A) A common buffer is a solution of acetic acid and acetate.
• B) A buffer is a weak acid and the acid's conjugate base in equal concentrations.
• C) A buffer is a physical barrier that blocks the addition of acid or base to a solution.
• D) A buffer is a solution that resists change of pH upon addition of small amounts of acid or base.
• E) Phosphates, bicarbonate, and proteins are all buffering systems in the body.

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Definitions:

Germinal Period

The initial two weeks of prenatal development following conception, characterized by rapid cell division and attachment to the uterine wall.

Embryonic Period

The stage of prenatal development from approximately the second to the eighth week after fertilization, during which major organs and structures within the embryo begin to develop.

Lungs

The pair of respiratory organs in the chest of humans and many animals, responsible for the exchange of oxygen and carbon dioxide.

Prenatal Period

The developmental period before birth, spanning from conception to birth.