Chapter 6 Learning Curve

Which of these values is closest to the protein RDA for an adult athlete who weighs 132 lb? A) 44 grams B) 48 grams C) 56 grams D) 72 grams

B) 48 grams

Protein quality is based on the: A) preparation method of the protein. B) proportion of essential amino acids. C) length of the proteins. D) proportion of non-essential amino acids.

B) proportion of essential amino acids.

A protein that increases the transcription of a gene in response to a specific environmental stimulus BEST exemplifies which type of protein function? A) structure B) regulation C) enzymes D) transporters

B) regulation

At a healthy weight of 176 lb, Brian meets his RDA for protein by eating _____ grams of protein. A) 80 B) 100 C) 64 D) 176

C) 64

What happens when a person's protein intake is inadequate? A) The carbon skeleton of the amino acids is used to synthesize glucose. B) The amino group of the amino acids is used to synthesize protein compounds. C) Compounds that are critical for survival will not be synthesized. D) Amino acids are converted to fatty acids.

C) Compounds that are critical for survival will not be synthesized.

What happens when the albumin in the blood gets too low? A) Dehydration results from low albumin in the blood. B) Growth and development progress more rapidly. C) Fluid retention occurs in the extremities. D) More hormones are needed to regulate cell function.

C) Fluid retention occurs in the extremities.

mRNA carries information (or messages) into the ____, where protein synthesis occurs. A) nucleus B) amino acid pool C) cytoplasm D) DNA

C) cytoplasm

The vast majority of chemical reactions that occur in our body are catalyzed by: A) lipids. B) coenzymes. C) enzymes. D) antibodies.

C) enzymes.

What distinguishes one protein from another? A) Animal proteins have amino acids that contain an amino group. B) Short-chain proteins are synthesized by linking amino acids with peptide bonds. C) Plant proteins have amino acids with the same side chain. D) Each protein has a unique sequence and type of amino acids.

D) Each protein has a unique sequence and type of amino acids.

Which statement about protein sources is true? A) Complete proteins occur only in animal sources. B) Only eggs support protein synthesis in the body. C) Strict vegetarians are protein deficient. D) Essential amino acids can be supplied by consuming two or more complementary protein plant foods.

D) Essential amino acids can be supplied by consuming two or more complementary protein plant foods.

The majority of amino acids supplied in the diet are absorbed as: A) small peptide fragments with no more than eight amino acids. B) tripeptides. C) individual amino acids. D) dipeptides and tripeptides.

D) dipeptides and tripeptides.

Which food provides an incomplete protein? A) egg B) soy C) quinoa D) rice

D) rice