Domain 1 Flashcards
What minerals are involved in carbohydrate metabolism?
a. cobalt, zinc
b. chromium, zinc
c. copper, chromium
d. iron, zinc
b. chromium, zinc
An amino acid that cannot be produced by the body is:
a. alanine
b. glycine
c. tyrosine
d. tryptophan
d. tryptophan
The following is an irreversible reaction:
a. pyruvic acid into lactic acid
b. pyruvic acid into acetyl CoA
c. glucose-6-phosphate into glycogen
d. glucose-6-phosphate into pyruvate
b. pyruvic acid into acetyl CoA
Riboflavin, thiamin, and niacin are all involved in the:
a. metabolism of carbohydrate
b. metabolism of fat
c. metabolism of protein
d. production of amino acids
a. metabolism of carbohydrate
An increased plasma pyruvate level is an indication of:
a. iron deficiency
b. riboflavin deficiency
c. excess carbohydrate ingestion
d. thiamin deficiency
d. thiamin deficiency
In the fed state, the brain uses which nutrients as a source of energy?
glucose
In starvation the brain uses which nutrients as a source of energy?
ketone bodies
Gluconeogenesis is the:
creation of glucose from glycerol and amino acids
Glycolysis is the:
catabolism of carbohydrate
Glycogenolysis is the:
breakdown of glycogen releasing glucose
The end product of aerobic glycolysis is:
pyruvic acid
In humans, vitamin K is affected by:
a. anticoagulants and antibodies
b. iodine
c. water-soluble vitamins
d. gluten
a. anticoagulants and antibodies
Which hormone regulates calcium levels?
a. insulin
b. thyroid
c. parathyroid
d. aldosterone
c. parathyroid
Pyridoxine acts as a coenzyme in:
a. iron transfer
b. deamination and transamination
c. fat transfer through the lymphatic system
d. osmotic pressure of body fluids
b. deamination and transamination
Which of the following are synthesized by intestinal bacteria?
a. biotin, panthothenic acid, vitamin K
b. vitamin E, vitamin K, biotin
c. pyridoxine, vitamin E
d. ascorbic acid, pyridoxine, vitamin K
a. biotin, panthothenic acid, vitamin K
Biotin is considered a coenzyme in the synthesis of:
a. protein
b. carbohydrate
c. glycogen
d. fatty acids
d. fatty acids
Which enzymes are involved in protein digestion?
a. ptyalin, lipase, sucrase
b. amylase, lipase, trypsin
c. pepsin, trypsin, chymotrypsin, carboxypeptidase
d. trypsin, lipase, amylase
c. pepsin, trypsin, chymotrypsin, carboxypeptidase
Protein digestion begins in the:
a. mouth
b. stomach
c. small intestine
d. ileum
b. stomach
Which conversion requires glucose-6-phosphatase?
a. glucose into liver glycogen
b. glucose into pyruvic acid
c. pyruvic acid into lactic acid
d. liver glycogen into glucose
d. liver glycogen into glucose
NADPH is:
a. essential in the synthesis of fatty acids
b. essential in the synthesis of glycogen
c. involved in the catabolism of protein
d. essential in transamination
a. essential in the synthesis of fatty acids
The following are required for the conversion of pyruvic acid into in active acetate?
a. thiamin, NAD, oxaloacetic acid, magnesium
b. oxygen, pantothenic acid, vitamin E
c. Thiamin, niacin, riboflavin pantothenic acid, magnesium
d. pantothenic acid oxaloacetate, citric acid
c. Thiamin, niacin, riboflavin pantothenic acid, magnesium
Which vitamins acts as a coenzyme in transamination?
a. pyridoxine
b. thiamin
c. riboflavin
d. vitamin b12
a. pyridoxine
Dietary fat enters the blood as ——- and leaves the liver as——-
a. phospholipids, chylomicrons
b. chylomicrons, phospholipids
c. chylomicrons, lipoproteins
d. lipoproteins, chylomicrons
c. chylomicrons, lipoproteins
The oxidation of fatty acids forms:
a. acetyl CoA
b. pyretic acid
c. lactic acid
d. oxaloacetate
a. acetyl CoA
Which of the following can be reversed with vitamin A?
a. xerophthalmia
b. nyctalopia
c. Wilsons disease
d. homocysteinuria
b. nyctalopia
