Exam 10: Water-Soluble Vitamins

Within the body, the antioxidant functions of _______________ include reducing copper-containing enzymes.

In the movie “Rocky,” the main character drank shakes with raw eggs. Consequently, the bioavailability of _____ may have been reduced by the _____ in the eggs.

What advice would you give to consumers to help them meet the goal of eating three or more servings of whole-grain products per day, with the rest of the recommended grains coming from enriched products?

Which vitamin can counteract the “antithiamin factors”?

How are water-soluble vitamins initially circulated in the body?

When intake of riboflavin is chronically low, where does absorption occur?

The amino acid tryptophan can be converted to:

Vitamin C can cure the common cold as well as the flu.

What water-soluble compound is needed for fatty acid transport across biological membranes?

Therapeutic doses of niacin have been shown to lower cholesterol; however, taking too much niacin is harmful. How much is too much, and what are the harmful effects?

What is the coenzyme form of pantothenic acid?

Intrinsic factor is made in the:

People with Hartnup disorder have a genetic abnormality that impairs absorption of which of the following?

What nutrient can be produced in the body from the amino acids methionine and lysine?

Although exceptions do exist, generally, water-soluble vitamins are very toxic when consumed in large amounts.

Use the following case study (10-A) to answer questions Case Study 10-A: John is a 52-year-old factory worker.He has been admitted to the hospital and presents with muscle weakness and inflammation of his mouth.He is a bit confused and states that he isn't drinking now although he has a history of alcohol abuse.He has lost quite a bit of weight in the last six months, and his dietary intake has been poor.He was laid off a year ago but he is back to work part-time.Further testing has been ordered to determine the cause for concern and confirm the diagnosis. -Which of the following diagnoses best fits the description?

Excess consumption of _____ can also decrease the bioavailability of thiamin.

Which of the following foods are especially good sources of vitamin B₆?

_______________ is involved in energy metabolism (as part of coenzyme A), hemoglobin synthesis, and phospholipid synthesis.

Vitamin C can be made from glucose in humans.