The chitinous exoskeleton of arthropods is formed by the polymerisation of:
Correct answer: A. N-acetyl glucosamine
- A. N-acetyl glucosamine
- B. Lipoglycans
- C. Keratin sulfate and chondroitin sulfate
- D. D -glucosamine
Explanation
Chitin is a structural polysaccharide that constitutes the exoskeleton of arthropods. It is a complex carbohydrate in which N-acetyl glucosamine monomers are joined together by (1,4) linkages. The chitinous exoskeleton provides strength and elasticity to arthropods.
Last updated
About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
Practise Biological Molecules
1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.