Parathyroid Hormone Does All of the Following, except That It

question 158

Multiple Choice

Parathyroid hormone does all of the following, except that it doesn't

• A) build up bone.
• B) enhance the reabsorption of calcium at the kidneys.
• C) stimulate the formation and secretion of calcitriol at the kidneys.
• D) stimulate osteoclast activity.
• E) inhibit osteoblast activity.

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Definitions:

Sperm

Male reproductive cells responsible for fertilizing a female's egg to initiate pregnancy.

Ova

The plural of ovum; female reproductive cells or eggs which, when fertilized by sperm, can develop into an embryo.

Chromosomes

Thread-like molecules that carry hereditary information for everything from height to hair color in the form of genes.

Deoxyribonucleic Acid

A molecule that carries most of the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.