Multiple choice

Which heteropolysaccharide serves as lubricant in the synovial fluid of the joints?

  1. Heparin

  2. Peptidoglycan

  3. Hyaluronate

  4. Heparan sulphate

  5. Proteoglycans
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The glycosaminoglycans hyaluronic acid(hyaluronate at physiological pH)contains alternating residues of D-glucoronic acid and N-acetyl glucosamine. Hyaluronates  have molecular weights grater than 1 million, they form clear, highly viscous solutions.

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