DH 209 NUTRITION M3 QUIZ #2 QUESTIONS & ANSWERS
1. which substance is most essential for hydrolyzing large protein molecules?-
Answers - -
pepsin
2. passage of a permeable substance from a more concentrated solution to an
area of lower concentration is called osmosis. transport requiring a carrier and
cellular energy is active transport- Answers - the first statement is false, the second is true
3. each statement describes functions of the small intestine, except one. which
is the exception?- Answers - enzymatic breakdown of cellulose
4. during peristalsis, doorlike mechanism called valves or sphincter muscles
perform all of the following functions, except one. which is the exception?-
Answers - syn- thesize dietary enzymes necessary for chemical digestion
5. each is true of protective elements within the microflora, except one. which
is the exception?- Answers - prebiotics are food ingredients that must be digested to stimulate growth and
activity of microorganism
6. nutrients are absorbed from the small intestine through the mucosa into the
portal circulation. nutrients are transported through the portal vein to the liver
where metabolism is initiated.- Answers - both statements are true
7. an adult stomach functions as a reservoir to hold an average meal for 6 to 8
hours. the rate of passage through the stomach ( fastest to slowest) is liquids,
proteins, carbohydrates, and fats.- Answers - the first statement is false, the second is true
8. complex carbohydrates contain more than 10 monosaccharides. complex
carbohydrates are also called disaccharides.- Answers - the first statement is true the
second is false
9. which monosaccharide is the most sweet?- Answers - fructose
10. dietary fiber refers to digestible component of food that include polysaccha-
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1. which substance is most essential for hydrolyzing large protein molecules?-
Answers - -
pepsin
2. passage of a permeable substance from a more concentrated solution to an
area of lower concentration is called osmosis. transport requiring a carrier and
cellular energy is active transport- Answers - the first statement is false, the second is true
3. each statement describes functions of the small intestine, except one. which
is the exception?- Answers - enzymatic breakdown of cellulose
4. during peristalsis, doorlike mechanism called valves or sphincter muscles
perform all of the following functions, except one. which is the exception?-
Answers - syn- thesize dietary enzymes necessary for chemical digestion
5. each is true of protective elements within the microflora, except one. which
is the exception?- Answers - prebiotics are food ingredients that must be digested to stimulate growth and
activity of microorganism
6. nutrients are absorbed from the small intestine through the mucosa into the
portal circulation. nutrients are transported through the portal vein to the liver
where metabolism is initiated.- Answers - both statements are true
7. an adult stomach functions as a reservoir to hold an average meal for 6 to 8
hours. the rate of passage through the stomach ( fastest to slowest) is liquids,
proteins, carbohydrates, and fats.- Answers - the first statement is false, the second is true
8. complex carbohydrates contain more than 10 monosaccharides. complex
carbohydrates are also called disaccharides.- Answers - the first statement is true the
second is false
9. which monosaccharide is the most sweet?- Answers - fructose
10. dietary fiber refers to digestible component of food that include polysaccha-
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