- a) D-glucosamine
- b) Keratin sulphate and chondroitin sulphate
- c) Lipoglycans
- d) N-acetyl glucosamine
Answer: d) N-acetyl glucosamine
Explanation:
Exoskeleton of arthropods is composed of chitin, which is a polymer of N-acetyl glucosamine.
For more on NEET, visit BYJU’S.