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30 Cards in this Set

  • Front
  • Back
_______are not used as fuel and are required in relatively small quantities.

a. micronutrients
b. macronutrients
c. essential nutrients
d. proteins
e. lipids
Micronutrients
The only significant digestible polysaccharide in the diet is

a. glycogen
b. cellulose
c. starch
d. maltose
e. fiber
Starch
Which of the following stores the greatest amount of energy for the smallest amount of space in the body?

a. glucose
b. triglycerides
c. glycogen
d. proteins
e. vitamins
triglycerides
The lipoproteins that remove cholesterol from the tissues are

a. chylomicrons
b. lipoprotein lipases
c. VLDLs
d. LDLs
e. HDLs
HDLs
Proteins serve all of the following functions except to act as

a. enzymes
b. coenzymes
c. hormones
d. antibodies
e. structural support for cells
coenzymes
The primary function of B-complex vitamins is to act as

a. structural components of cells.
b. sources of energy
c. components of pigments
d. antioxidants
e. coenzymes
coenzymes
FAD is reduced to FADH2 in

a. glycolysis
b. anaerobic fermentation
c. the citric acid cycle
d. the e- transport chain
e. beta-oxidation of lipids
the citric acid cycle
The primary, direct benefit of anerobic fermentation is to

a. regenerate NAD+
b. produce FADH2
c. produce lactic acid
d. dispose of pyruvic acid
e. produce more ATP than glycolysis does
regenerate NAD+
Which of these occurs in the mitochondrial matrix?

a. glycolysis
b. chemiosmosis
c. the cytochrome reactions
d. the citric acid cycle
e. anaerobic fermentation
the citric acid cycle
When the body emits more infared energy than it absorbs, it is losing heat by

a. convection
b. forced convection
c. conduction
d. radiation
e. evaporation
radiation
A/an_____protein lacks one or more essential amino acids.
Incomplete
In the postabsorptive state, glycogen is hydrolyzed to liberate glucose. This process is called_______.
glycogenolysis
Synthesis of glucose from amino acids or triglyercides is called_______.
gluconeogenesis
The major nitrogenous waste resulting from protein catabolism is_____.
urea
The organ that synthesizes the nitrogenous waste in question 14 is the_____.
liver
The absorptive state is regulated mainly by the hormone_______.
insulin
The temperature of organs in the body cavities is called_____.
core temperature
The feeding center, satiety center, heat-losing center, and heat-promoting center are nuclei located in part of the brain called the______.
hypothalamus
The brightly colored, iron-containing, electron-transfer molecules of the inner mitochondrial membrane are called______.
cytochromes
The flow of Hydrogen ions from the intermembrane space to the mitochondrial matrix creates an electrical current used by the enzyme______to make______.
ATP synthase, ATP
T/F Orexin and leptin are two hormones that stimulate the appetite.
False, Leptin surpresses the appetite.
T/F Water is a nutrient, but O2 and cellulose are not.
True
T/F An extremely low-fat diet can cause vitamin-deficiency diseases.
True
T/F Most of the body's cholesterol comes from the diet.
False, most of the cholesterol is endogenous (originated internally), not dietary (food taken in).
T/F There is no harm in maximizing one's daily protein intake.
False, excessive protein intake can cause renal damage.
T/F Aerobic resperation produces more ATP than anaerobic fermentation.
True
T/F Reactions occurring on the mitochondrial inner membrane produce more ATP than glycolysis and the matrix reactions combined.
True
T/F Gluconeogenesis occurs especially in the absorptive state during and shortly after a meal.
False, Gluconeogenesis is a post-absorptive phenomenom.
T/F Brown fat generates more ATP than white fat and is therefore especially important for thermoregulation.
False, Brown fat does not generate ATP
T/F At a comfortable air temperature, the body loses more heat as infared radiation than by any other means.
True