NEETBotanyBiomolecules (B)
The complex polysaccharide that forms the exoskeleton of arthropods is a homopolymer of which of the following monomeric units?
Options
- AN-acetyl glucosamine
- BN-acetyl galactosamine
- CGlucose
- DFructose
Correct answer
A. N-acetyl glucosamine
Step-by-step solution
The exoskeleton of arthropods is made of a complex structural polysaccharide called chitin. According to NCERT, chitin is a homopolymer consisting of N-acetyl glucosamine monomers. Glucose is the monomeric unit for starch, glycogen, and cellulose. Fructose is the monomeric unit for inulin. N-acetyl galactosamine is an incorrect modification of the actual monomer. Answer: N-acetyl glucosamine