Ch. 6: Proteins Practice Tests

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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


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