Question

which of the following helps make the calcium - binding protein needed for calcium absorption? select one o a. vitamin d o b. fiber o c. oxalic acid o d. glucose o e. phytic acid

Explanation:

To determine which substance helps make the calcium - binding protein needed for calcium absorption, we analyze each option:

• Option A: Vitamin D plays a crucial role in the synthesis of the calcium - binding protein in the intestine, which is essential for calcium absorption.
• Option B: Fiber is mainly related to digestive health and has no direct role in calcium - binding protein synthesis for calcium absorption.
• Option C: Oxalic acid can bind to calcium and reduce its absorption, rather than helping in making the calcium - binding protein.
• Option D: Glucose is a source of energy and is not involved in the production of the calcium - binding protein for calcium absorption.
• Option E: Phytic acid can also bind to calcium and inhibit its absorption, and it is not related to the synthesis of the calcium - binding protein.

Answer:

A. Vitamin D