The mineral which helps maintain fluid balance, transmits nerve impulses, participates in muscle contraction, and helps transport some nutrients across cell membranes is

A) water. B) sodium. C) magnesium. D) potassium.


Answer: B

Nutritional Science

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Which statement BEST explains why carbohydrate digestion ceases when food reaches the stomach?

A) Carbohydrate is completely absorbed in the esophagus. B) Salivary enzymes cannot function in the acid environment of the stomach. C) Intestinal bacteria are needed for carbohydrate digestion. D) Carbohydrate is completely digested in the mouth.

Nutritional Science

Which amino acid is essential?

a. asparagine b. tryptophan c. glycine d. glutamine e. proline

Nutritional Science

The source of calcium during the process known as fast calcium exchange is:

a. dissolution of bone. b. blood plasma. c. bone fluid. d. liver calcium stores.

Nutritional Science

According to the DSM-5, the three main types of eating disorders are ________.

A. binge-eating disorder, bulimia nervosa, and anorexia nervosa B. anorexia, diabulimia, and night eating syndrome C. anorexia, female athlete triad, and night eating syndrome D. muscle dysmorphia, bulimia nervosa, and binge-eating disorder

Nutritional Science