Exam 10: Water-Soluble Vitamins

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

A deficiency of pyroxidine is characterized by macrocytic anemia

Treating grain products with which of the following can increase niacin's bioavalability?

The vitamin deficiency _____ is characterized by cheilosis, stomatitis, glossitis, muscle weakness, and confusion

_______________ is involved in single-carbon transfer reactions and is needed for amino acid metabolism and DNA synthesis

What agency is responsible for overseeing the safety and efficacy of dietary supplements?

The compound _______________ is used by the body to synthesize acetylcholine and a variety of phospholipids needed for cell membrane structure; it is considered a conditionally essential nutrient

_______________ is involved in energy metabolism, the electron transport chain, synthesis of fatty acids and proteins, metabolism of vitamin C and folate, glucose homeostasis, and cholesterol metabolism

Which food below contains the least amount of vitamin B₁₂?

_______________ is involved in energy metabolism, the synthesis of a variety of vitamins, nerve function, and protection of membranes

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

Water-soluble vitamins can be lost or destroyed by any of the items listed below except:

How does vitamin C "recharge" enzymes? Provide an example

_______________ is involved in the metabolism of proteins and amino acids; the synthesis of neurotransmitters and hemoglobin; glycogenolysis; and regulation of steroid hormone function

Which one of vitamins below protects your body from free radicals?

In order to be absorbed, _____ obtained from lecithin needs to be cleaved from its glycerol backbone by pancreatic enzymes

Where are most water-soluble vitamins absorbed?

When the intake of vitamin C is low, absorption occurs by:

_____ is a coenzyme for many reactions, all of which involve the transfer of single-carbon groups

Which water-soluble compound is considered a conditionally essential nutrient for infants?