Shivering warms the body because it increases the rate of A. radiation. B. conduction. C. ATP hydrolysis. D. vasodilation. E. glycolysis.
C. ATP hydrolysis.
100
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)
A) Ghrelin
100
All oxidative carbohydrate consumption is essentially a matter of ________ metabolism
A) Fructose
B) Glucose
C) Sucrose
D) Galactose
B) Glucose
100
True or False: Triglycerides are primarily stored in the body’s adipocytes.
TRUE
100
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
B. 4 hours during and after a meal
200
The quickest physiological mechanism for achieving moderate heat loss is A. convection. B. cutaneous vasoconstriction. C. nonshivering thermogenesis. D. cutaneous vasodilation. E. diaphoresis.
D. cutaneous vasodilation
200
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
D) 4, 9
200
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
D) Anaerobic fermentation
200
3.) How many carbon atoms does Beta oxidation remove at a time?
A.) 3
B.) 2
C.) 10
D.) 4
B. 2
200
Postabsorptive metabolism is regulated mainly by:
A. The central nervous system
B. the sympathetic nervous system
C. Glucagon
D. B and C
D. B and C
300
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.
D. radiation
300
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
TRUE
300
Lactic acid is _______ and contributes to muscle fatigue
A) Toxic
B) Oxygen using
C) Completely safe
A) Toxic
300
True or False: Although the liver is connected to the digestive tract and regarded as a digestive gland, most of its functions are NONdigestive.
TRUE
300
In the postabsorptive state, glycogen is hydrolyzed to liberate glucose. This process is called?
A. Glycogenolysis
B. Gluconeogenesis
C. Glucose oxidation
D. Lipogenesis
A. Glycogenolysis
400
The loss of body heat by conduction can be enhanced by A. radiation. B. evaporation. C. nonshivering thermogenesis. D. shivering thermogenesis. E. convection.
E. convection
400
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
C) 120
400
____ of glycogen is in the liver, and ____ is in the skeletal muscles
A) ½, ½
B) ¼, ¾
C) 1/3, 2/3
B) ¼, ¾
400
Lipolysis is stimulated by all of the following EXCEPT:
A.) Epinephrine
B.) Glucocorticoids
C.) Mineralcortocoids
D.) Thyroid Hormone
C.) Mineralcortocoids
400
The liver usually stores enough glycogen after a meal to support 4 hours of postabsorptive metabolism before Gluconeogenesis occurs.
TRUE or FALSE
TRUE
500
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.
A. extreme electrolyte loss in the sweat.
500
Even a brief period of hyperglycemia causes nervous system disturbances felt as weakness or dizziness.
False
500
5) In severe absence of carbohydrates, fats and amino acids can be oxidized as fuel. T/F
TRUE
500
Synthesizing fats from other types of molecules is called?
A.) Ketogenesis
B.) Glycogenesis
C.) Lipolysis
D.) Lipogenesis
D.) Lipogenesis
500
What does the body use for fuel once the glycogen and fat reserves are depleted?
A. Collagen
B. Lipids
C. Protein
D. Amino acids