ASC 378 EXAM 4 QUESTIONS AND CORRECT
ANSWERS
Chemical formula for vitamin A - Answers - C20H30O
With regards to pellagra, high intake of molasses could lead to - Answers - diarrhea
The deficiency of this vitamin results in xeropthalmia (or dry eye condition) and
testicular degeneration - Answers - Vitamin A
The functions of vitamin C include which of the following
A. Tyrosine metabolism
B. Hydroxylation of proline
C. Acts as antihistamine
D. All of the above - Answers - All of the above
T/F α-tocopherol is fat soluble - Answers - true
Formiminoglutamic acid is found in large amount in the urine of animals that are
deficient in what acid? - Answers - folic acid
The main storehouse of vitamin A - Answers - liver
The most popular synthetic form of vitamin A - Answers - palmitate
Which of the following all-trans isomers of carotenoid is the most potent?
A. Α-carotene
B. Β-carotene
C. Γ-carotene
D. Cryptoxanthin - Answers - β-carotene
What vitamin is not stored in the body of animals (pig is an exception)? - Answers -
Thiamine
The degenerative changes in the testes of an animal as a result of this vitamin is not
reversible? - Answers - Vitamin E
The most active form of vitamin E is the _____ form - Answers - Alpha (α)
In terms of relative potency of vitamin A isomer, which of the follow is the most potent?
A. All-cis
B. 13-cis
C. 9, 13-di-cis
, D. All-trans - Answers - All-trans
In the absence of this vitamin, pyruvic acid and lactate accumulate in the blood and
tissue of an animal. - Answers - thiamine
The vitamin that is phosphorylated in the liver (post absorption) and is involved in
protein/amino acid metabolism is known as - Answers - pyridoxine
The process through which nonessential amino acids are synthesized (transamination
reaction) requires a certain vitamin. In addition to transamination, this vitamin also plays
an important role in the decarboxylation reactions in the body of an animal. - Answers -
pyridoxine
Avidin is a protein in egg white, is an antagonistic to what water soluble vitamin? -
Answers - biotin
The deficiency of _______ (a vitamin) results in a situation in which certain amino acid
cannot be condensed with succinyl coa to form α-amino-β-ketoadipic acid which is the
initial step in heme synthesis. What is this name of this vitamin and amino acid?
A. Niacin; Glutamine
B. Niacin; Methionine
C. Pyridoxine; Tryptophan
D. Pyridoxine; Glycine - Answers - Pyridoxine; Glycine
What is not a symptom of pellagra in man? - Answers - fetal resorption
This vitamin is sensitive to acid, base, and heat and it is normally sold as its calcium
salt. It is also involved in the acetylation of choline. - Answers - Pantothenic acid
This vitamin occurs in nature and in natural products in bound form and serves as a
prosthetic group for a series of enzymes that incorporate CO2 into organic linkages. -
Answers - biotin
Hemorrhagic sweet clover disease is a problem associated with antagonism between
dicoumarol and vitamin______. - Answers - K
The deficiency of which vitamin causes fatty liver? - Answers - choline
This vitamin serves as a donor of methyl group mediated through its role in forming S-
adenosylmethionine (SAM) - Answers - choline
One of the vitamins that we discussed in class occurs in two forms - a reduced form that
is readily oxidized to a dehydro form. However, both of these forms are biologically
active. Which of the following is the vitamin. - Answers - Vitamin C
This vitamin is involved in tyrosine metabolism. - Answers - Folic acid
ANSWERS
Chemical formula for vitamin A - Answers - C20H30O
With regards to pellagra, high intake of molasses could lead to - Answers - diarrhea
The deficiency of this vitamin results in xeropthalmia (or dry eye condition) and
testicular degeneration - Answers - Vitamin A
The functions of vitamin C include which of the following
A. Tyrosine metabolism
B. Hydroxylation of proline
C. Acts as antihistamine
D. All of the above - Answers - All of the above
T/F α-tocopherol is fat soluble - Answers - true
Formiminoglutamic acid is found in large amount in the urine of animals that are
deficient in what acid? - Answers - folic acid
The main storehouse of vitamin A - Answers - liver
The most popular synthetic form of vitamin A - Answers - palmitate
Which of the following all-trans isomers of carotenoid is the most potent?
A. Α-carotene
B. Β-carotene
C. Γ-carotene
D. Cryptoxanthin - Answers - β-carotene
What vitamin is not stored in the body of animals (pig is an exception)? - Answers -
Thiamine
The degenerative changes in the testes of an animal as a result of this vitamin is not
reversible? - Answers - Vitamin E
The most active form of vitamin E is the _____ form - Answers - Alpha (α)
In terms of relative potency of vitamin A isomer, which of the follow is the most potent?
A. All-cis
B. 13-cis
C. 9, 13-di-cis
, D. All-trans - Answers - All-trans
In the absence of this vitamin, pyruvic acid and lactate accumulate in the blood and
tissue of an animal. - Answers - thiamine
The vitamin that is phosphorylated in the liver (post absorption) and is involved in
protein/amino acid metabolism is known as - Answers - pyridoxine
The process through which nonessential amino acids are synthesized (transamination
reaction) requires a certain vitamin. In addition to transamination, this vitamin also plays
an important role in the decarboxylation reactions in the body of an animal. - Answers -
pyridoxine
Avidin is a protein in egg white, is an antagonistic to what water soluble vitamin? -
Answers - biotin
The deficiency of _______ (a vitamin) results in a situation in which certain amino acid
cannot be condensed with succinyl coa to form α-amino-β-ketoadipic acid which is the
initial step in heme synthesis. What is this name of this vitamin and amino acid?
A. Niacin; Glutamine
B. Niacin; Methionine
C. Pyridoxine; Tryptophan
D. Pyridoxine; Glycine - Answers - Pyridoxine; Glycine
What is not a symptom of pellagra in man? - Answers - fetal resorption
This vitamin is sensitive to acid, base, and heat and it is normally sold as its calcium
salt. It is also involved in the acetylation of choline. - Answers - Pantothenic acid
This vitamin occurs in nature and in natural products in bound form and serves as a
prosthetic group for a series of enzymes that incorporate CO2 into organic linkages. -
Answers - biotin
Hemorrhagic sweet clover disease is a problem associated with antagonism between
dicoumarol and vitamin______. - Answers - K
The deficiency of which vitamin causes fatty liver? - Answers - choline
This vitamin serves as a donor of methyl group mediated through its role in forming S-
adenosylmethionine (SAM) - Answers - choline
One of the vitamins that we discussed in class occurs in two forms - a reduced form that
is readily oxidized to a dehydro form. However, both of these forms are biologically
active. Which of the following is the vitamin. - Answers - Vitamin C
This vitamin is involved in tyrosine metabolism. - Answers - Folic acid
