Exam 12: Micronutrient Function in Energy Metabolism

Bill's physician has written a prescription for 1.5 grams of nicotinic acid (a form of niacin)per day.Which of the following is a benefit of high doses of niacin?

Consistently consuming raw egg whites,as in a daily high-protein drink,can bind and result in deficiency.

Symptoms of ______ deficiency include glossitis,dermatitis,cheilosis,eye disorders,sun sensitivity,and confusion.

_________ is important in the synthesis of thyroid hormone.Lack of it will lead to a goiter.

A ______ is an organic compound that aids enzyme function by combining with an inactive enzyme to form a catalytically active form.

A pantothenic acid deficiency

Risk of molybdenum toxicity risk in humans is quite low.

Biotin absorption is inhibited by

______ is a water-soluble vitamin that is especially important in amino acid metabolism,neurotransmitter synthesis,and the synthesis of the heme portion of hemoglobin.

A major source of iodine in the North American diet is

In the body,the amino acid tryptophan can be converted into

The nutrient that prevents beriberi is

Beriberi is caused by a ______ deficiency.

In North America,which of the following populations is most susceptible to deficiencies of B vitamins?

A deficiency of vitamin B-6 can result in depression,headaches,and confusion.These occur because of impaired

Manganese is required as a cofactor for synthesis of _______ and metabolism of some _______.

Pellagra is characterized by

The apparent role of _______ in prevention of birth defects is similar to that of folate.

People who eat large amounts of seaweed can consume toxic levels of which trace mineral?

Manganese is not toxic at high doses.