Which of the Following Is Not True Concerning the Control

question 143

Multiple Choice

Which of the following is not true concerning the control of calcium metabolism?

• A) PTH (parathyroid hormone) causes an increase in plasma calcium by activation of osteoclasts.
• B) PTH increases renal reabsorption of calcium.
• C) vitamin D causes an increase in secretion of Ca²⁺ into the lumen of the digestive tract.
• D) calcitonin causes a decrease in plasma calcium by decreasing Ca²⁺ movement from the bone fluid into the plasma and by suppressing bone resorption.
• E) when plasma calcium increases, PTH decreases and calcitonin increases.

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Definitions:

Sensitivity Analysis

A technique used to determine how different values of an independent variable will impact a particular dependent variable under a given set of assumptions.

Linear Programming

A mathematical method used for achieving the best outcome (such as maximum profit or lowest cost) in a mathematical model whose requirements are represented by linear relationships.

Corner Points

In linear programming, points at the corner or edge of the feasible region which may contain the optimal solution.

Linear Programming

A mathematical method for determining a way to achieve the best outcome in a given mathematical model for some list of requirements represented as linear relationships.