Which Statement About Calcium Regulation Is True

question 184

Multiple Choice

Which statement about calcium regulation is true?

• A) Parathyroid hormone (PTH) prompts the kidneys to decrease phosphate in the urine.
• B) Parathyroid hormone (PTH) stimulates deposition of calcium and phosphate into bone.
• C) Parathyroid hormone (PTH) prompts the kidneys to increase calcium in the urine.
• D) Calcitriol acts on the digestive tract to decrease absorption of calcium from food.
• E) High levels of circulating calcium inhibit the synthesis and release of parathyroid hormone (PTH).

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Definitions:

Capacity

The maximum level of output that a company can sustain to make a product or provide a service, taking into account current resources and facilities.

Short Run

A time period in economics during which at least one input is fixed while others may be variable, affecting the production and costs of a business.

Long Run

In economics, the long run refers to a period in which all inputs or factors of production can be varied and no costs are fixed.

Capital Intensity Ratio

A metric that measures the amount of assets required to generate a dollar of revenue, indicating how much capital is invested in production.