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Chap 4-6

Which of the following proteins inactivates foreign bacteria and viruses? Antibodies
Jim, a college baseball player, tells you that he has started to take glutamine supplements. How would you advise him? Since single amino acids do not occur naturally in foods, they offer no benefit to the body and may even be harmful
Upon eating a hamburger, in what organ is the hydrolysis of its proteins initiated? Stomach
Which of the following is not considered to be a source of high-quality protein in human nutrition Corn
Which of the following is not an essential amino acid in human nutrition? Proline
What is the structure of an enzyme? Protein
Which of the following describes a process in protein synthesis? The code to make a protein is carried by a strand of messenger RNA
Which of the following is a feature of whey protein? It is a waste product of cheese production
Of the following sources of amino acids, which would be best absorbed in normal, healthy people?
Proteins, because they attract hydrogen ions, can act as buffers
The disease phenylketonuria is related chiefly to abnormal metabolism of a certain amino acid
In what organ is pepsin active? Stomach
Approximately what percentage of children worldwide have protein-energy malnutrition? 25 %
What digestive enzyme would be most affected in people who are unable to produce hydrochloric acid? Pepsin
The application of heat or acid to a protein that causes its shape to change is known as denaturation
What is the name of the inactive form of the protein-splitting enzyme in the stomach? pepsinogen
Approximately how many different amino acids are used in the synthesis of body proteins? 20
What is the chief function of pepsin? Cleaves proteins into small polypeptides
In comparison to the composition of carbohydrates and fats, which element found in proteins makes them unique? Nitrogen
What process results in the hardening of an egg when it is exposed to heat? Denaturation
All of the following are contained in an amino acid excep an aldehyde group
Which of the following illustrates a deamination reaction? Removal of the amino group from an amino acid
Which of the following statements describes the glycemic index of foods? A way of ranking foods according to their potential to increase blood glucose
Which of the following fibers is water insoluble? Cellulose
What is the primary function of insulin? Lowers Blood Glucose Levels
Which of the following is a feature of aspartame? Two of its breakdown products include methanol and formaldehyde
What is stevia an herb derived sweetner
Which of the following is not a feature of high-fiber foods? Provide more energy per gram than processed foods
How many carbon atoms are found in most common dietary monosaccharides? 6 atoms
All of the following are sources of dietary carbohydrates except fish
The types of atoms found in a glucose molecule include all of the following except nitrogen
Which of the following is known to correlate most strongly with reduced risk of deaths from heart disease? High Fiber Intake
What are cellulose, pectin, hemicellulose, and lignin? Fibers
What is the chief reason that many people with lactose intolerance can consume foods containing some lactose without suffering any symptoms? a change occurs in the GI bacteria
Created by: 331800308