MT AAB CHEMISTRY EXAM STUDY GUIDE 2025/2026
COMPREHENSIVE QUESTIONS WITH VERIFIED
CORRECT ANSWERS || ALREADY GRADED A+
<BRAND NEW VERSION>
What are the functions of proteins? .......Answer.........-
Transportation of metabolic substances.
-Part of the cell membranes.
-Part of hormones and receptors.
-Components of Enzymes.
Proteins are composed of: .......Answer.........-Carbon
-Oxygen
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-Hydrogen
-Nitrogen (differentiates proteins from carbohydrates & lipids).
-Sulfur
*Proteins have a high molecular weight, making them good
immunogens.
What proteins are soluble? .......Answer.........Albumin- Soluble in
water
Globulins- Soluble in dilute salt solutions
Histones- Soluble in dilute acids
Basic unit: Amino Acids are linked by what?
.......Answer.........Peptide bonds.
-Short chain hydrocarbons w/carboxyl and amine group.
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*Each amino acid may act as an acid or a base.
What is the structure of peptide bonds? .......Answer.........Primary
Stucture: Sequence of amino acids.
Secondary Structure: Hydrogen bonding.
Tertiary Structure: Disulfide bonding.
Quaternary Structure: Electrostatic Attraction.
What is protein denaturation? .......Answer.........The change of
protein structure.
Can be caused by:
- Change in temperature (rupture weak secondary & tertiary
bonds)
-Change in pH (alter ionic charge)
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-Hydrolysis
-UV light
What are Aminoacidopathies? .......Answer.........Inherited
disorders of amino acid metabolism
such as:
-Phenylketonuria
-Tyrosinemia
-Alkaptonuria
-Maple Syrup Disease
-Cystinuria (not an enzyme deficiency)
Name the disorder: