Ch. 6: Proteins Practice Tests
d. fruit 1 gram of protein per serving
According to MyPlate the food group that contributes the least protein is a. milk b. grain c. vegetable d. fruit
a. peptide bonds Amino acids are linked together to from proteins
Amino acids are linked together by _____ to form proteins. a. peptide bonds b. hydrogen atoms c. emulsifiers d. denatured proteins
False absorbed by active transport in the small intestines
Amino acids are primarily absorbed in the large intestine. True or False
True
An inadequate intake of dietary protein can stunt a child's growth. True or False
True
Animal protein foods often contain large amounts of saturated fat. True or False
c. infancy
At which stage of life must a diet contain the highest percentage of protein as essential amino acids? a. older adulthood b. pregnancy c. infancy d. young adulthood
False
Athletes need at least triple the protein intake of non-athletes. Supplements are the preferred source. True or False
False
Low-protein diets are suitable for weight loss because nitrogen can be supplied by fat and carbohydrates. True or False
True
Marasmus is a disease caused by starvation and can be seen in children who live in large cities of impoverished countries. True or False
True
Milk provides high-quality protein called casein. True or False
False
Most North Americans have trouble consuming a diet containing all the essential amino acids True or False
True
Most of the energy in water-packed tuna is in the form of protein. True or False
b. are not needed in the diet
Nonessential amino acids a. are not needed by the body b. are not needed in the diet c. are not needed daily, but weekly d. are found in only incomplete proteins
c. liver
Urea is synthesized from amino groups mostly in the a. blood b. kidneys c. liver d. small intestine
d. the affected are breastfed infants
Which is NOT true about kwashiorkor? a. protein needs are generally not met b. the child appears plump because of edema c. the child is at a high risk for infections d. the affected are breastfed infants
b. gelatin
Which of the following foods/combos of foods does NOT provide mixtures of amino acids that are well balanced for humans? a. corn and refried beans b. gelatin c. eggs d. macaroni and cheese
d. glycogen Antibodies are proteins that participate in the immune response.
Which of the following is definitely NOT a protein? To answer you will need to go back to Ch.4 and Ch.5. A. antibody b. enzyme c. connective tissue; collagen d. glycogen
True
With few exceptions, almost all enzymes are proteins. True or False
False
Because proteins are a combination of a variety of amino acids, it is crucial to consume sufficient amounts of All of the amino acids in the diet. True or False
c. positive has to be positive to ensure fetal growth and development
During pregnancy, protein balance should be a. negative b. in equilibrium c. positive d. either positive or in equilibrium
d. cannot be sythesized in the body
Essential (indispensable) amino acids a. is only found in animal products b. is needed only by growing infants and children c. is the amino acid in smallest supply in foods d. cannot be synthesized by the body in sufficient amounts to meet the body's needs
c. diabetes High protein diets can lead to further increases in KETOSIS in diabetes type 2 patients
High-protein diets are discouraged in people with a. skin ulcers b. HIV c. diabetes d. kwashiorkor
d. all of the above
If a person takes in more protein than the body needs, the excess protein can be a. converted to fat b. converted to glucose c. used to provide energy for the body if needed d. all of the above
a. the child has been fed watered-down formula or was given unsafe water
In marasmus a. the child has been fed watered-down formula or was given unsafe water. b. protein needs are met c. muscle wasting is present, but hidden by edema d. preschool children, not infants, are affected
b. blood protein concentration is decreased
Nutritional edema occurs when a. blood protein concentration is increased b. blood protein concentration is decreased c. the red blood cell number decreases d. there is a great change in blood hemoglobin concentration
a, during kidney disease
One would expect to see a negative protein balance a. during kidney disease b. during pregnancy c. as one recovers from an illness d. in any healthy human being
d. phenylalanine-PHE
Phenylketonuria (PKU) is treated by limiting a. all amino acids b. tryptophan-TRP c. tyrosine_TYR d. phenylalanine-PHE
False
Protein deficiencies are commonly seen in North America. True or False
False
Protein needs are the greatest late in the life span. True or False
True
Protein, a type or nutrient, and nitrogen (N), one of many elements, are related. True or False
a. binding or releasing hydrogen into the plasma
Proteins help regulate body acid-base balance by a. binding or releasing hydrogen into the plasma b. accepting alkaline substances from the blood c. releasing acid-forming amino acids into the blood d. attracting water back to the blood from the tissues
d. amino acids out of order on the polypeptide chain
Sickle-cell disease (anemia) is the result of a. not eating enough iron b. not eating enough protein c. eating too much protein d. amino acids out of order on the polypeptide chain
b. increase intake of animal products
The 2010 Dietary Guidelines for Americans do NOT provide the following recommendations regarding protein intake: a. increase intake of fat-free and low-fat milk and milk products. b. increase intake of animal products c. replace protein foods high in solid fats with those low in solid fats d. choose seafood in place of some meat and poultry
b. 10%-15%
The RDA for protein intake is ______ of total calorie intake. a. 5%-10% b. 10%-15% c. 15%-20% d. 20%-25%
c. during pregnancy
The RDA for protein is increased a. during mental stress b. after age 30 c. during pregnancy d. whenever physical activity is increased
c. 48 g 60 g x 0.8 g= 48 g
The RDA for protein of a 60kg (132lb) woman is a. 36 g b. 42 g c. 48 g d. 54 g
b. a limiting amino acid
The amino acid that is the lowest concentration in diet relative to body need is: a. an indispensible amino acid b. a limiting amino acid c. a complementary amino acid d. a complete protein
b. nitrogen
The chemical element (atom) found in all proteins, but not usually in fats or carbs is a. carbon b. nitrogen c. hydrogen d. oxygen
b. happens in the stomach
The denaturing of protein a. destroys its amino acid order b. happens in the stomach c. is prevented by cooking d. forms an emulsifier
d. 9
There are _______ essential amino acids a. 20 b. 11 c. 10 d. 9
