Cellulose is a polymer of glucose where the monomers are connected by ?-linkages. Humans cannot digest this substance because ____
A) ?they only produce ?-amylase
B) ?they produce insufficient quantities of ?-amylase
C) ?cellulose is resistant to the human form of ?-amylase
D) ?the ?-linkages are too strong to be hydrolyzed
A
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The nonnutritive sweetener sucralose is made from:
a. sucrose. b. an amino acid. c. aspartame. d. maltose.
Which BMI result is classified as being "overweight?"
a. 22.9 b. 23.9 c. 24.1 d. 25.9 e. 30.8
Which of the following comprises the vitamin B6 "umbrella" of compounds?
A) cholecalciferol and ergocalciferol B) retinol, retinal, and retinoic acid C) phylloquinone and menaquinone D) pyridoxal, pyridoxine, and pyridoxamine
A group of rats being fed gelatin as the sole protein source are not growing well. What is the likely reason?
a. gelatin has no tryptophan and is low in methionine and lysine b. gelatin has no methionine and is low in tryptophan c. gelatin has no lysine or methionine, and is low in tryptophan d. gelatin has no arginine