51-102 Flashcards
51) Which causes dental caries? (tooth decay/cavity)
a. S. epidermis
b. S. saprophyticus
c. Staphylococcus mutans
d. Staphylococcus aureus
C. Streptococcus mutans
52) Nematodes are
a. Tapeworms
b, Roundworms
c. Bacteria
d. Protozoa
B. Roundworms
53) Flukes are classified under
a. Trematodes
b. Tapeworms
c. Cestodes
d. Nematodes
A. Trematodes
54) The coenzyme of pyridoxine is
a. Coenzyme A
b. Pyridoxal phosphate
c. THF
d. TPP
b. Pyridoxal phosphate
55) B9 is ______ and its coenzyme is _______
a. biotin, biotin
b. thiamin, thiamine pyrophosphate
c. niacin, NADP
d. folic acid, tetrahydrofolate
D. folic acid, tetrahydrofolate
56) Which vitamin can be made from tryptophan in the body?
a. thiamine
b. niacin
c. riboflavin
d. biotin
B. niacin
57) Which of the following is not an antioxidant?
a. selenium
b. copper
c. Vitamin A
d. Vitamin E
B. copper
58) All of the following are true regarding vitamin C in humans except:
a. It can be made from glucose
b. Vitamin C aids in the absorption of iron
c. Helps in the making of collagen
d. Vitamin C is involved with hydroxylation reactions
A. It can be made from glucose
59) Which vitamin B3 coenzyme is involved with fatty acid synthesis?
a. FMN
b. TPP
c. FAD
d. NADP
d. NADP
60) The active coenzymes of riboflavin are ______ and _______
a. FMN, FAD
b. NAD, NADP
c. TPP, FAD
d. Coenzyme A, NAD
a. FMN, FAD
61) Which of the following does not have a branched chain?
a. Valine
b. Tryptophan
c. Leucine
d. Isoleucine
B. Tryptophan
62) Which is involved in decarboxylation reactions and is not the yellow vitamin?
a. biotin
b. thiamine
c. riboflavin
d. niacin
b. Thiamine
63) The coenzyme of thiamine is
a. FAD
b. FMN
c. Coenzyme A
d. Thiamine pyrophosphate
D. Thiamine pyrophosphate
64) Which vitamin contains the isoalloxazine ring system?
a. Thiamine
b. Niacin
c. Vitamin C
d. Riboflavin
D. Riboflavin
65) Pantothenic acid contains sulfur. Which other vitamin also contains sulfur?
a. Thiamine
b. Niacin
c. Riboflavin
d. Vitamin C
a. Thiamine
66) Which of the following is not true of pyridoxine?
a. it is needed in protein metabolism
b. deficiency will cause convulsions in infants
c. pyridoxamine phosphate is its coenzyme
d. deficiency will cause pernicious anemia
D. Deficiency will cause pernicious anemia
67) All of the following are essential amino acids except:
a. Valine
b. Phenylalanine
c. Lysine
d. Tyrosine
D. Tyrosine
18) All of the following have branched chains except:
a. Valine
b. Phenylalanine
c. Leucine
d. Isoleucine
B. Phenylalanine
69) Which is not composed of collagen?
a. Hydroxylysine
b. Hydroxyproline
C. Ornithine
D. Glycine
C. Ornithine
70) Which is a non-essential amino acid?
a. Valine
b. Serine
c. Arginine
d. Histidine
B. Serine
71) The vitamin helps in the formation of purines and when this vitamin is deficient it will cause megaloblastic anemia?
a. Pyridoxine
b. Folic acid
c. Pantothenic acid
d. Thiamine
B. Folic Acid
72) Glucose and fructose will form
a. cellobiose
b. isomaltose
c. sucrose
d. maltose
C. Sucrose
73) The oxidation of glucose is referred to as _______
a. glycolysis
b. glycogenesis
c. cellular respiration
d. glycogenolysis
C. cellular respiration
74) Which of the following is not an essential fatty acid?
a. Arachadonic
b. Linolenic
c. Linoleic
d. Phospholipid
D. Phospholipid