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NUTR 424: QUIZ 5Protein quality is based on the amounts and types of amino acids and the extent to which the amino acids are
absorbed.
True or False
Compare and contrast the health consequences of excess and insufficient protein in the diet.
Low-quality protein can negatively affect an athlete’s performance and health. With low-quality protein, it
can affect an athlete’s health by weakening their immune system and could be a sign of low-nutrient
Excessively high protein diets (› 2.5 grams of protein per kilogram of body weight) have not been shown to
benefit training, recovery, performance, or health. Protein contains nitrogen, which is converted into urea when it
is metabolized in the liver. Urea in excess is toxic and must be excreted by the kidneys. Excess protein in the diet
can strain the kidneys in some high-risk people. Additionally, each individual has a maximum amount of urea that
can be processed at one time.
The chemical composition of proteins differs from carbohydrates or fat because of the presence of…
● hydrogen
● carbon
● sodium
● nitrogen
An enzyme is a protein that...
● helps maintain fluid balance
● helps the body to achieve acid-base balance and optimal pH
● regulates metabolic processes
● speeds up (catalyzes) chemical reactions
The amino acids in casein are absorbed faster than the amino acids in whey.
True or False
Processes that build complex molecules from simple molecules are referred to as
● deamination
● catabolic
● transamination
● anabolic
A food protein that contains all of the indispensable (essential) amino acids in the proper amounts and proportions
to support growth is known as a ____.
● Predigested protein
● complete protein
● incomplete protein
● indispensable protein
Which of the following statements is true about ammonia?
● Ammonia is produced in the muscle as a result of the breakdown of ATP.
● Ammonia is produced by the catabolism of amino acids.
● Ammonia is not toxic to the body.
● Ammonia is converted to urea in the kidneys.
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