1 Inquire through: | Professional | Confidential Support
DIT 121 STUDY GUIDE 2 Questions and Answers
(100% Correct Answers)
1. Name the primary function of fat and protein.
Ans: Both yield energy
- The main function of fat is Energy Source (9kcals/gram)
1. Concentrated energy source
2. Provides padding; protects organs.
3. Provides insulation, temperature regulation.
4. The essential part of cell membranes
5. Carries fat soluble vitamins ADEK.
6. Provides essential fatty acids.
a. Linolenic
b. Linoleic
7. Spares protein
- The main function of protein
1. Building materials for growth & maintenance
a. Collagen
b. Replace dead cells
2. Enzymes
3. Hormones
4. Regulators of fluid balance
a. Proteins attract water
b. Usually within cells; leak out = edema
, 2 Inquire through: | Professional | Confidential Support
5. Acid/base regulators
a. Attract hydrogen ions
b. Acids/alkaline denature protein
6. Antibodies
7. Transport vehicles
8. Source of energy and glucose
2. What are unique characteristics of the chemical structures of triglycerides and
protein
Ans: Triglycerides(1 glycerol + 3 fatty acids)
The main form of fat in diet and main storage form
Most abundant in our food
Proteins contain:
Carbon, hydrogen, oxygen, nitrogen
Side group distinguishes between the amino acids
Proteins more complex than carbohydrates or fats
Proteins are made up of one or more chains of amino acids: Amino acids are the
building blocks of protein
20 amino acids
Essential amino acids Must be supplied by the diet
Nonessential amino acids Body can synthesize
Peptide bonds link amino acids
Can be dozen-hundreds amino acids long
2 AA= dipeptide
3 AA= tripeptide
>3 AA= polypeptide (proteins)
DIT 121 STUDY GUIDE 2 Questions and Answers
(100% Correct Answers)
1. Name the primary function of fat and protein.
Ans: Both yield energy
- The main function of fat is Energy Source (9kcals/gram)
1. Concentrated energy source
2. Provides padding; protects organs.
3. Provides insulation, temperature regulation.
4. The essential part of cell membranes
5. Carries fat soluble vitamins ADEK.
6. Provides essential fatty acids.
a. Linolenic
b. Linoleic
7. Spares protein
- The main function of protein
1. Building materials for growth & maintenance
a. Collagen
b. Replace dead cells
2. Enzymes
3. Hormones
4. Regulators of fluid balance
a. Proteins attract water
b. Usually within cells; leak out = edema
, 2 Inquire through: | Professional | Confidential Support
5. Acid/base regulators
a. Attract hydrogen ions
b. Acids/alkaline denature protein
6. Antibodies
7. Transport vehicles
8. Source of energy and glucose
2. What are unique characteristics of the chemical structures of triglycerides and
protein
Ans: Triglycerides(1 glycerol + 3 fatty acids)
The main form of fat in diet and main storage form
Most abundant in our food
Proteins contain:
Carbon, hydrogen, oxygen, nitrogen
Side group distinguishes between the amino acids
Proteins more complex than carbohydrates or fats
Proteins are made up of one or more chains of amino acids: Amino acids are the
building blocks of protein
20 amino acids
Essential amino acids Must be supplied by the diet
Nonessential amino acids Body can synthesize
Peptide bonds link amino acids
Can be dozen-hundreds amino acids long
2 AA= dipeptide
3 AA= tripeptide
>3 AA= polypeptide (proteins)
