DH 209 NUTRITION FINAL QUESTIONS (FROM CANVAS)
1. What is a nutrient?- Answers - a substance that provides nourishment essential for growth and the
maintenance of life.
2. T/F- Answers - An essential nutrient is a substance the body cannot make
and must be obtains from an outside source. A non-essential nutrient is a
nutrient that the body can make on its own.- Answers - Both statements are true
3. What is a kilocalorie?- Answers - a measure of energy content in food; commonly referred to as "calorie"
4. What is nutrient density?- Answers - a measure of the nutrients a food provides relative to the energy
(calorie amount) it provides
5. T/F- Answers - Organic does not have carbon bonds. Non-organic has carbon-
carbon or carbon-hydrogen bonds.- Answers - Both statements are false.
6. Which reference has replaced the RDA and includes EAR, UL, and AI?- Answers -
DRI (Dietary Reference Intake)
7. When is AI used?- Answers - When there is not enough data to set the EAR (estimated average requirement )
8. What population is the RDA designed to cover?- Answers - Healthy people
9. How long is the GI tract? And what does it include?- Answers - -30 feet long
-Includes- Answers - Mouth, esophagus, stomach, small intestine, and large intestine to the anus
10. Which enzyme breaks down starches and carbohydrates in the mouth?-
Answers - salivary amylase
11. How long is the small intestine? And what are the different parts of the SI?-
Answers - 10 feet long- where most of the nutrient absorption happens.
3 parts= duodenum, jejunum, ileum
12. Where does protein begin breaking down?- Answers - In the stomach because of enzymes
(pepsin) and hydrochloric acid
13. What is 5 feet in length and the place where water, electrolytes and bile salts
are absorbed?- Answers - Large intestine
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, 14. What are the accessory organs of the digestive system?- Answers - liver, gallbladder,
and pancreas
15. What are examples of mechanical digestion?- Answers - - cutting and grinding action of
teeth
- churning action of stomach and small intestines
-peristalsis- Answers - involuntary wavelike contractions to move food through alimentary canal
16. What are examples of chemical digestion?- Answers - - salivary amylase Breaking down
carbohydrates and starches into sugars
- Enzymes changing proteins into amino acids
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1. What is a nutrient?- Answers - a substance that provides nourishment essential for growth and the
maintenance of life.
2. T/F- Answers - An essential nutrient is a substance the body cannot make
and must be obtains from an outside source. A non-essential nutrient is a
nutrient that the body can make on its own.- Answers - Both statements are true
3. What is a kilocalorie?- Answers - a measure of energy content in food; commonly referred to as "calorie"
4. What is nutrient density?- Answers - a measure of the nutrients a food provides relative to the energy
(calorie amount) it provides
5. T/F- Answers - Organic does not have carbon bonds. Non-organic has carbon-
carbon or carbon-hydrogen bonds.- Answers - Both statements are false.
6. Which reference has replaced the RDA and includes EAR, UL, and AI?- Answers -
DRI (Dietary Reference Intake)
7. When is AI used?- Answers - When there is not enough data to set the EAR (estimated average requirement )
8. What population is the RDA designed to cover?- Answers - Healthy people
9. How long is the GI tract? And what does it include?- Answers - -30 feet long
-Includes- Answers - Mouth, esophagus, stomach, small intestine, and large intestine to the anus
10. Which enzyme breaks down starches and carbohydrates in the mouth?-
Answers - salivary amylase
11. How long is the small intestine? And what are the different parts of the SI?-
Answers - 10 feet long- where most of the nutrient absorption happens.
3 parts= duodenum, jejunum, ileum
12. Where does protein begin breaking down?- Answers - In the stomach because of enzymes
(pepsin) and hydrochloric acid
13. What is 5 feet in length and the place where water, electrolytes and bile salts
are absorbed?- Answers - Large intestine
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, 14. What are the accessory organs of the digestive system?- Answers - liver, gallbladder,
and pancreas
15. What are examples of mechanical digestion?- Answers - - cutting and grinding action of
teeth
- churning action of stomach and small intestines
-peristalsis- Answers - involuntary wavelike contractions to move food through alimentary canal
16. What are examples of chemical digestion?- Answers - - salivary amylase Breaking down
carbohydrates and starches into sugars
- Enzymes changing proteins into amino acids
2/9
