Chemistry Macromolecules / Biochemistry MDCAT 2010
PMDC Verified Question 46 of 47
Collagen and albumin are:
A
Simple proteins
B
Derived proteins
C
Polyamide
D
Polysaccharide
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Simple proteins
Concept:

Proteins are classified into simple, conjugated, and derived proteins based on their composition and hydrolysis products. Simple proteins yield only amino acids upon hydrolysis.

Formula:

$$N/A$$

Solution:

  • Collagen (a structural protein in connective tissues) and albumin (a globular blood protein) consist entirely of amino acid sequences.
  • Upon hydrolysis, they yield only amino acids and no non-protein (prosthetic) groups, making them simple proteins.


Why other options are incorrect:

Derived proteins are products of partial hydrolysis of proteins (like peptones). Polyamides can be synthetic (like nylon), and polysaccharides are carbohydrates, not proteins.

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