Module 2 Protein Flashcards
What determines the shape and function of the protein?
a. the number of the amino acids in the protein strand b. the order/sequence of the amino acids in the protein strand c. how much of each amino acid is consumed in the diet d. the amount of nitrogen available for producing amino acids
the order/sequence of the amino acids in the protein strand
In considering amino acids and proteins, which statement is true?
a. Proteins and amino acids are the same things. b. Amino acids are made of many proteins. c. Proteins are made of many amino acids.
Proteins are made of many amino acids
How do proteins differ from other energy nutrients?
a. glycerol backbone b. phosphorous group c. nitrogen d. extra carbons
nitrogen
If the shape of a protein is changed, the _____ of the protein is changed.
a. size b. function c. electrical charge d. nutritional value
function
what can be synthesized by the body
non-essential amino acids
what needs to be obtained from the diet in certain situations when they cannot be synthesized by the body
conditionally essential amino acids
What cannot be synthesized by the body and need to be obtained from the diet
essential amino acids
Which of the following are examples of proteins in the body? Select all that apply
[mark all correct answers]
a.
Enzymes
b. Albumin c. Collagen d. Keratin e. Insulin
a.
Enzymes
b. Albumin c. Collagen d. Keratin e. Insulin
What is a primary function of amino acids?
a. Build proteins needed by the body. b. Provide essential water-soluble vitamins. c. Produce thyroxin and insulin. d. Supply most of the kcalories required by the body
Build proteins needed by the body
When nitrogen is stripped from amino acids during digestion, what is produced?
a. Fatty acids b. Urea c. Ammonia d. Polypeptide
Ammonia
What is an example of denaturing?
a. Dough rising when it rests. b. Crystals forming on meat when it is frozen. c. The odor when milk has spoiled. d. Hardening of an egg when it is cooked.
Hardening of an egg when it is cooked
A friend says she wants to take enzyme supplements to help heal her sprained ankle. What is the best response to her?
a. Enzymes are found naturally in the foods you eat, and supplements will not help any more than those in foods. b. Enzymes are protein which must be broken down into amino acids in order to be absorbed and sent to the ankle. The enzyme would no longer be active once broken down. c. Supplements are artificial and would likely deteriorate the lining of the intestinal tract. d. The enzymes need to be a specific type of enzyme that builds and heals muscle tissue that has been torn.
Enzymes are protein which must be broken down into amino acids in order to be absorbed and sent to the ankle. The enzyme would no longer be active once broken down.
What is the action of hydrochloric acid in the stomach on protein?
a. denaturation b. a condensation reaction c. decreased enzyme activity d. an increase in alkalinity
denaturation
is when consumption is less than excretion.
Negative nitrogen balance
is when consumption equals excretion
Nitrogen balance
