Chapter Questions
The first vitamin that was identified due to a disorder in humans, causing beriberi, isa. Pantothenic acidb. Thiaminc. Riboflavind. Niacin
Which amino acid can form the vitamin niacin?a. Threonineb. Methioninec. Tryptophand. Tyrosine
What vitamins are involved in the transfer of carbon units and cell replication (DNA synthesis)?
Dogs, mink, foxes, or cats fed raw fish can become deficient in this B vitamin.a. Thiaminb. Riboflavinc. Biotind. Niacin
The vitamin that functions as a coenzyme in protein and $\mathrm{N}$ metabolism isa. $\operatorname{Vitamin} \mathrm{E}$b. Pyridoxine (vitamin B6)c. $\operatorname{Vitamin} C$
Which vitamin is involved in collagen and neurotransmitter synthesis and is also an antioxidant?
A lack of cobalt in the diet of a ruminant animal will lead to a deficiency of this vitamin.a. $\quad$ Vitamin $\mathrm{K}$b. Vitamin B12c. Vitamin B6d. Niacin
What are the coenzymes/cofactors for riboflavin, niacin, and pantothenic acid?
Describe the role of the stomach in the absorption of yitamin B12.
The vitamins that function as coenzymes in energy metabolism area. Thiamin, riboflavinb. Pyridoxal phosphate (vitamin B6), vitamin Ac. Vitamin $D,$ vitamin $\mathrm{A}$d. Vitamin $\mathrm{E},$ vitamin $\mathrm{A}$
A vitamin that functions in the metabolism of volatile fatty acids in ruminants.a. Vitamin B6b. Vitamin B12c. $\operatorname{Vitamin} C$d. Niacin
Which enzyme reactions require biotin? Name the antivitamin that causes biotin deficiency.
An experimental drug added to animal diets has been shown to inhibit the functions of coenzyme $A$ and make it unavailable to facilitate energy metabolism in the animal. Which one of these vitamins is an integral part of coenzyme $\mathrm{A} ?$a. Pantothenic acidb. Niacinc. Riboflavind. Thiamin
The rat chow you got at Walmart if fed to guinea pigs, could cause deficiency of which of the $\mathrm{B}$ vitamins?
Niacin is a vitamin that was discovered in the search for the cause of pellagra, a skin dermatitis found in humans. Which amino acid can form niacin?a. Threonineb. Taurinec. Tryptophand. Tyrosine