CHEM 153 STUDY QUESTIONS WITH
ANSWERS. 2024/2025 UPDATE A+ GRADE
DESCRIPTIONS.
1 . Proteins: Naturally-occurring, unbranched polymer of Amino Acids.
2. nitrogen; sulfur: Proteins provide and for the diet.
3. Structure
Catalyst
Moveme
nt
Transpor
t
Hormones
Protection
Storage
Regulation: Enumerate the functions of proteins
4. Collagen & Keratin: Proteins found in the skin, bone, and hair for
structure
5. Enzymes: Proteins that catalyzes reactions in living systems
6. Myosin & Actin: Proteins in the muscle for movement
7. Hemoglobin & lipoproteins: Proteins used for transport
8. Insulin, oxytocin, human growth hormone: Proteins for
hormones
9. Fibrinogen: Proteins for blood clotting
10. Antibodies: Proteins to fight diseases
1 1. Casein: Proteins in milk used for storage of nutrients
12. Ovalbumin: Proteins in eggs used for storage of nutrients
13. Ferritin: Proteins in liver used for storage of iron
14. Fibrous / Globular: 2 Types of Proteins
1/7
, CHEM 153 STUDY QUESTIONS WITH
ANSWERS. 2024/2025 UPDATE A+ GRADE
DESCRIPTIONS.
15. Fibrous: What type of protein is collagen?
16. Globular: What type of protein is hemoglobin?
17. Amino acids: compound that contains an amino and a carboxyl
group.
18. ±mino acid: amino acids in which the amino group and the
carboxyl group are attached to the ±arbon.
19. R group: • side chain
• the carbon group
20. Zwitterion: a positive charge on one atom and a negative charge
on another atom
21 . L-configuration: Most of protein derived amino acids
have at the ±arbon.
22. Non-polar amino acids: contains non-polar (hydrophobic)
side chains
23. 9: How many are non-polar amino acids?
24. Glycine
(Gly, G)
Alanine (Ala, A)
Valine (Val, V)
Leucine (Leu,
L) Isoleucine
(Ile, I)
Proline (Pro, P)
Phenylalanine (Phe, F)
Methionine (Met, M)
2/7
ANSWERS. 2024/2025 UPDATE A+ GRADE
DESCRIPTIONS.
1 . Proteins: Naturally-occurring, unbranched polymer of Amino Acids.
2. nitrogen; sulfur: Proteins provide and for the diet.
3. Structure
Catalyst
Moveme
nt
Transpor
t
Hormones
Protection
Storage
Regulation: Enumerate the functions of proteins
4. Collagen & Keratin: Proteins found in the skin, bone, and hair for
structure
5. Enzymes: Proteins that catalyzes reactions in living systems
6. Myosin & Actin: Proteins in the muscle for movement
7. Hemoglobin & lipoproteins: Proteins used for transport
8. Insulin, oxytocin, human growth hormone: Proteins for
hormones
9. Fibrinogen: Proteins for blood clotting
10. Antibodies: Proteins to fight diseases
1 1. Casein: Proteins in milk used for storage of nutrients
12. Ovalbumin: Proteins in eggs used for storage of nutrients
13. Ferritin: Proteins in liver used for storage of iron
14. Fibrous / Globular: 2 Types of Proteins
1/7
, CHEM 153 STUDY QUESTIONS WITH
ANSWERS. 2024/2025 UPDATE A+ GRADE
DESCRIPTIONS.
15. Fibrous: What type of protein is collagen?
16. Globular: What type of protein is hemoglobin?
17. Amino acids: compound that contains an amino and a carboxyl
group.
18. ±mino acid: amino acids in which the amino group and the
carboxyl group are attached to the ±arbon.
19. R group: • side chain
• the carbon group
20. Zwitterion: a positive charge on one atom and a negative charge
on another atom
21 . L-configuration: Most of protein derived amino acids
have at the ±arbon.
22. Non-polar amino acids: contains non-polar (hydrophobic)
side chains
23. 9: How many are non-polar amino acids?
24. Glycine
(Gly, G)
Alanine (Ala, A)
Valine (Val, V)
Leucine (Leu,
L) Isoleucine
(Ile, I)
Proline (Pro, P)
Phenylalanine (Phe, F)
Methionine (Met, M)
2/7
