Which of the Following Statements Concerning Vitamin D Is False

question 140

Multiple Choice

Which of the following statements concerning vitamin D is false?

• A) Vitamin D begins its synthesis in the skin when the skin is exposed to ultraviolet light.
• B) Vitamin D causes the kidney to excrete calcium.
• C) Vitamin D is necessary for the uptake of calcium from the intestine.
• D) Vitamin D is necessary for the formation of bones and teeth.
• E) Vitamin D is important for calcium homeostasis.

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Definitions:

Diffusion

The process by which molecules move from an area of higher concentration to an area of lower concentration, leading to an equal distribution.

Oil-immersion Lens

A type of microscope objective lens used with a drop of oil to increase resolution by reducing light refraction.

Coarse Focus Knob

A control on a microscope that allows the user to make large adjustments in focus, moving the objective lens closer to or further from the specimen.

Lens-cleaning Solution

A specially formulated liquid used for cleaning and disinfecting optical lenses, including those in eyeglasses and cameras.