Asked in PMC Practice Test 31 (2021) 2021

Which of the statement is not true for compounds like glycoprotein and glycolipids?

Correct answer: D. Both are produced and screted by endoplasmic reticulum

  • A. They are conjugated molecules of carbohydrates
  • B. Both have role in the extracellular matrix of animals and bacterial cell wall
  • C. They are components of biological membranes.
  • D. Both are produced and screted by endoplasmic reticulum

Explanation

Addition of sugars to protiens and lipids occurs in the golgi body, not in the endoplasmic reticulum.

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About Conjugated Molecules

Conjugated molecules contain a non-protein component attached to a protein portion, giving the molecule properties that a simple protein lacks. The content includes glycoproteins, lipoproteins, phosphoproteins, nucleoproteins, chromoproteins and metalloproteins, with attention to their prosthetic groups and roles in transport, protection, catalysis and cellular structure.

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