Body Heat and Thermo-regulation Nutrition Carbohydrate Metabolism Lipid and Protein Metabolsim Metabolic States and Metabolic Rate

100

C. ATP hydrolysis.
Shivering warms the body because it increases the rate of A. radiation. B. conduction. C. ATP hydrolysis. D. vasodilation. E. glycolysis.

100

A) Ghrelin
1. Which peptide produces the sensation of hunger and stimulates the hypothalamus to secrete growth hormone- thus priming the body to take best advantage of the nutrients about to be absorbed? A) Ghrelin B) Cholecystokinin (CCK) C) Insulin D) Peptide YY (PYY)

100

B) Glucose
All oxidative carbohydrate consumption is essentially a matter of ________ metabolism A) Fructose B) Glucose C) Sucrose D) Galactose

100

TRUE
True or False: Triglycerides are primarily stored in the body’s adipocytes.

100

B. 4 hours during and after a meal
When are you in the absorptive state? A. 2 hours after finishing a meal B. 4 hours during and after a meal C. 1 hour before eating a meal D. 5 hours before and during a meal

200

D. cutaneous vasodilation
The quickest physiological mechanism for achieving moderate heat loss is A. convection. B. cutaneous vasoconstriction. C. nonshivering thermogenesis. D. cutaneous vasodilation. E. diaphoresis.

200

D) 4, 9
2. Carbohydrates and proteins yield about __ kcal/g when they are completely oxidized and fats yield about __ kcal/g A) 6, 11 B) 11, 6 C) 3, 8 D) 4, 9

200

D) Anaerobic fermentation
In the absence of oxygen, a cell resorts to a one-step reaction called what? A) Carbohydrate utilization B) Aerobic fermentation C) Glycolysis D) Anaerobic fermentation

200

B. 2
3.) How many carbon atoms does Beta oxidation remove at a time? A.) 3 B.) 2 C.) 10 D.) 4

200

D. B and C
Postabsorptive metabolism is regulated mainly by: A. The central nervous system B. the sympathetic nervous system C. Glucagon D. B and C

300

D. radiation
A nude body at a room temperature of 21C (70F) loses most of its heat by A. evaporation. B. conduction. C. convection. D. radiation. E. forced convection.

300

TRUE
The body is incapable of synthesizing minerals, most vitamins, eight of the amino acids, and one to three of the fatty acids (they must be included in the diet).True or False

300

A) Toxic
Lactic acid is _______ and contributes to muscle fatigue A) Toxic B) Oxygen using C) Completely safe

300

TRUE
True or False: Although the liver is connected to the digestive tract and regarded as a digestive gland, most of its functions are NONdigestive.

300

A. Glycogenolysis
In the postabsorptive state, glycogen is hydrolyzed to liberate glucose. This process is called? A. Glycogenolysis B. Gluconeogenesis C. Glucose oxidation D. Lipogenesis

400

E. convection
The loss of body heat by conduction can be enhanced by A. radiation. B. evaporation. C. nonshivering thermogenesis. D. shivering thermogenesis. E. convection.

400

C) 120
5. The RDA (recommended daily allowance) for carbohydrates is 125 to 175g. The brain alone consumes about ___g of glucose per day. A) 105 B) 90 C) 120 D) 145

400

B) ¼, ¾
____ of glycogen is in the liver, and ____ is in the skeletal muscles A) ½, ½ B) ¼, ¾ C) 1/3, 2/3

400

C.) Mineralcortocoids
Lipolysis is stimulated by all of the following EXCEPT: A.) Epinephrine B.) Glucocorticoids C.) Mineralcortocoids D.) Thyroid Hormone

400

TRUE
The liver usually stores enough glycogen after a meal to support 4 hours of postabsorptive metabolism before Gluconeogenesis occurs. TRUE or FALSE

500

A. extreme electrolyte loss in the sweat.
Heat exhaustion results from A. extreme electrolyte loss in the sweat. B. denaturation of proteins in the brain tissue. C. excessive heat loss from the body. D. a high rate of conduction and convection. E. a high humidity that retards evaporative cooling.

500

False
Even a brief period of hyperglycemia causes nervous system disturbances felt as weakness or dizziness.

500

TRUE
5) In severe absence of carbohydrates, fats and amino acids can be oxidized as fuel. T/F

500

D.) Lipogenesis
Synthesizing fats from other types of molecules is called? A.) Ketogenesis B.) Glycogenesis C.) Lipolysis D.) Lipogenesis

500

C. Protein
What does the body use for fuel once the glycogen and fat reserves are depleted? A. Collagen B. Lipids C. Protein D. Amino acids

Nutrition and Metabolism Round 1

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