NUTR 313: The Nutrients: Exam 2
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The adequate intake for carbohydrates is ______ grams per day.
Ans: 130
What is the daily carbohydrate intake range (in grams) that
corresponds to a 50-60% carbohydrate, 2000 calorie diet?
Ans: 250-300
Which of these fibers is soluble?
Ans: Pectin
Cellulose, lignan and resistant starch are all insoluble fibers,
whereas pectin is a type of soluble fiber
Starch to polysaccharide digestion begins in the _________ and fibers
are fermented in the __________.
Ans: mouth, large intestine
Starch to polysaccharide digestion happens primarily in mouth
and fibers are fermented in large intestine
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In the absence of oxygen, muscle contraction is sustained by what
glucose-dependent energy system?
Ans: Glycolysis
In the absence of oxygen, muscle contraction is sustained by
the glycolytic system.
Primary sugar in milk
Ans: lactose
Which organ relies solely on glycolysis for energy?
Ans: brain
The brain exclusively uses glucose for respiration, and while
only around 2% total body weight, this high-energy organ uses
up to 20% of the glucose that is consumed daily
Gastrointestinal bacteria metabolize resistant starches to yield what
organic acid?
Ans: Butyric acid
is an organic acid produced by bacterial fermentation of the
indigestible, resistant starch passing though
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Which of these carbohydrate status measures is most likely to elicit
frequent urination?
Ans: Hyperglycemia
causes the kidneys to release more water in efforts to rid the
blood of excess sugars.
Long-term carbohydrate status can be evaluated by what measure?
Ans: Glycosylated hemoglobin
The percentage of hemoglobin that is glycosylated is an
indicator of long-term carbohydrate control.
What is the approximate range in daily fat intake (in grams) that
corresponds to a 20-35% fat, 2000 calorie diet?
Ans: 45-75 grams
Touch the fatty acid that would form a SOLID fat at room temperature.
Ans: The straight carbon chain would more readily form a solid
fat. The kinked chain will not pack as tightly together, and
therefore, at room temperature, would more readily form a
liquid fat.
Which of these dairy foods is highest and lowest in total fat?
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