Nutr Ch 6
Without critical essential amino acids to perform their roles, many of the body's life- sustaining activities would come to a halt. True False
True
Removing the grain protein gluten from the diet has been shown to: a. resolve digestive problems in people with celiac disease. b. help with weight loss in people trying to lose weight. c. reduce problems with insomnia. d. reduce cancer risk. e. cause protein deficiency.
a
The more animal protein you eat, the higher your intake of _____. a. vitamin B12 b. vitamin A c. folate d. vitamin e. C serotonin
a
Which of the following food groups does not provide significant protein? a. fruits b. grains c. vegetables d. milk, yogurt, and cheese legumes
a
Which of the following is not associated with an excess of protein? a. enlarged livers in humans b. enlarged kidneys in animals c. worsening of existing kidney problems d. high-fat foods that contribute to obesity e. increased use of amino acids for energy
? b ?
For the majority of exercisers, adding excess protein or amino acid supplements to an adequate diet will stimulate muscle building. True False
False
Pre-digested proteins are easy to digest and can relieve the digestive system fro overworking. True False
False
Antibodies are large proteins in the blood that are effective in helping to destroy invading foreign particles. True False
True
Legumes are a good source of protein, many B vitamins, iron, and other minerals, making them exceptionally nutritious foods. True False
True
Overconsumption of protein-rich foods offers no benefits and may pose health risks, particularly for weakened kidneys. True False
True
Sickle-cell disease is an example of an inherited variation in the amino acid sequence. True False
True
A(n) ____ bond is formed between the amine group end of one amino acid and the acid group end of the next amino acid in a protein. a. peptide b. sulfur c. amino acid d. carbon e. denatured
a
Humans need to eat protein-containing foods regularly because: a. we need essential amino acids that can only be provided by foods. b. our bodies cannot make any amino acids needed for proteins. c. the function of protein is to maintain our muscle strength. d. protein is broken down quickly during digestion and lost from the body. e. protein is a good source of the essential nutrients iron, zinc, and B12.
a
In making recommendations for protein intake, the committee on DRI took into consideration that the protein in a normal diet would be: a. a combination of animal and plant sources. b. primarily from plant sources. c. primarily from animal sources. d. used with 100% efficiency by everyone. e. used only for muscle mass.
a
Which of the following provides amino acids that are best absorbed by the body? a. poultry b. vegetables c. fruits d. legumes e. grains
a
If a person has inherited genetic coding that is related to heart disease, what effect might dietary practices have on this person's health? a. They will have no effect because development of the disease has been pre- determined. b. They will have differing effects dependent upon the type of genetic messages. c. They can completely reverse the genetic coding that has been inherited. d. They will work the same way for everyone who has heart disease. e. They will alter the genetic coding and reduce the risk of heart disease.
b
Of the following foods, which likely contains the most easily digestible protein? a. oats b. tuna c. potatoes d. peanuts e. whole wheat
b
For athletes, the path to bigger muscles includes a. less protein and more carbohydrate than is recommended for non-athletes b. extra protein without physical work. c. vigorous physical training. d. well-timed meals, which directly stimulate protein synthesis. e. small doses of protein supplements after workouts.
c
The DRI for protein is determined using: a. height. b. activity level. c. body size. d. sex.
c
The strategy of combining two _____ plant protein sources permits the amino acids in one food to make up for those lacking in the other food. a. complete b. whole-grain c. complementary d. indigestible e. high-tryptophan
c
Which of the following accounts for the differences among the various amino acids? a. the presence or absence of nitrogen b. the amine group c. the side chain d. the type of bonds e. the acid group
c
If amino acids are oversupplied: a. muscle tissue formation is accelerated. b. the body converts amino acid residues to extra blood proteins. c. they are filtered from the blood and excreted by the kidneys. d. the body removes and excretes their amine groups. e. the body stores them until they are needed.
d
Negative nitrogen balance occurs in: a. growing children. b. lactating women. c. pregnant women. d. a surgery patient. e. a casual exerciser
d
Which of the following cooking methods would you use to increase the digestibility of protein? a. grilling b. smoking c. frying d. stewing e. baking
d
Which statement about the role of protein in a weight-loss plan is accurate? a. Protein should contribute 65 percent or more of the calories. b. There is no evidence that protein helps control the appetite. c. It is the proper proportion of nutrients that brings about long-term weight loss. d. Meeting protein recommendations during weight loss is critical for preserving lean tissues. e. Total energy expenditure is more important than energy intake.
d
How many amino acids are considered to be essential amino acids? a. 5 b. 20 c. 7 d. 13 e. 9
e
The body normally makes tyrosine from the essential amino acid: a. leucine. b. lysine c. isoleucine d. valine e. phenylalanine
e
Which of the following is found in protein but not in carbohydrate or fat? a. calories b. carbon c. hydrogen d. oxygen e. nitrogen
e
