The exoskeleton of arthropods is formed by the polymerisation of:
Correct answer: D. N-acetyl glucosamine
- A. Lipoglycans
- B. D-glucosamine
- C. Keratin sulphate and chondroitin sulphate
- D. N-acetyl glucosamine
Explanation
The exoskeleton of arthropods is made of chitin, a polysaccharide formed by the polymerisation of N-acetyl glucosamine. This gives the exoskeleton strength and rigidity while still allowing flexibility for movement.
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