Which Statement Is Incorrect

question 179

Multiple Choice

Which statement is incorrect?

• A)PTH causes an increase in plasma calcium by activation of osteoclasts.
• B)PTH increases renal reabsorption of calcium.
• C)Vitamin D causes an increase in Ca₂₊ secretion 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:

Outermost Shell

The last or farthest layer of an object or entity, often used to describe the external layer of atoms in chemistry or celestial bodies in astronomy.

Neutrons

Subatomic particles found in the nucleus of an atom; they are electrically neutral and along with protons, contribute to the atomic mass.

Ionic Bond

Chemical bond in which ions are attracted to one another by opposite charges.