Ch. 6 Flashcards
(23 cards)
Which of the following foods contains the most protein?
1 egg
1 slice of bread
1 cup of milk
1/2 cup of rice
1 cup of milk
If there is a limited supply of one amino acid
a different amino acid is substituted so protein synthesis can continue.
protein synthesis will be unaffected as long as the missing amino acid is an essential amino acid.
protein synthesis will be unaffected.
protein synthesis will stop.
protein synthesis will stop.
True or False?
Protein synthesis is controlled by activating or inhibiting gene expression.
True
True or False?
Instructions provided by the genes tell the body in what order to assemble a protein.
True
Enzymes are
structural proteins.
contractile proteins.
proteins that speed up reactions.
also called antibodies.
proteins that speed up reactions.
Protein is used as an energy source
exclusively by the brain.
only during exercise.
preferentially over carbohydrates.
during starvation.
during starvation.
Children with kwashiorkor may appear better nourished than children with marasmus because:
kwashiorkor is associated with fluid accumulation in the body.
growth is not impaired in kwashiorkor.
fat accumulates in the legs.
protein intake is not necessarily low in kwashiorkor.
kwashiorkor is associated with fluid accumulation in the body.
Protein energy malnutrition is
common in both adults and children.
more common in adults.
common in children because they are in a growth stage.
common in children because they eat less food.
common in children because they are in a growth stage.
True or False?
It is important for a person with kidney disease to follow a high-protein diet.
False
True or False?
A food allergy may cause a systemic immune response.
True
Positive nitrogen balance
indicates that the body is losing weight.
occurs when the body is growing.
does not exist since nitrogen intake always equals nitrogen output.
occurs when more nitrogen is excreted than consumed.
occurs when the body is growing.
Which of the following is least abundant in animal protein?
fiber
zinc
iron
B vitamins
fiber
True or False?
Body builders need about four times as much protein as a non-athlete.
False
True or False?
The quality of animal protein is considered higher than that of plant protein because animal proteins contain mixtures of amino acids that are similar to those we need.
True
Which of the following foods does not contain all of the essential amino acids?
fish
yogurt
soybeans
lentils
lentils
Of the following nutrients, which would be the biggest deficiency concern for a vegan?
vitamin B12
niacin
fiber
vitamin C
vitamin B12
The chemical element that is found in protein and that is not found in carbohydrate or lipid is
hydrogen.
oxygen.
nitrogen.
carbon.
nitrogen.
True or False?
Eleven amino acids are called non-essential because they are not needed by the body.
False
The shape of a protein is
determined only by the chemical properties of the amino acids.
determined by both the order and the chemical properties of the amino acids, which helps determine the function of the protein.
not essential to its function.
determined only by the order of the amino acids.
determined only by the chemical properties of the amino acids.
True or False?
Denaturation alters the shape of a protein but not its function.
False
The chemical digestion of protein begins in
the mouth.
the esophagus.
the small intestine.
the stomach.
the stomach.
True or False?
Consumption of a single amino acid, as a supplement, can interfere with the absorption of other amino acids.
True
Which of the following can be absorbed from the intestinal lumen into the mucosal cells?
Single amino acids.
Dipeptides.
Tripeptides.
All of the choices are correct.
All of the choices are correct.
