Question

One of your classmates steps on a cockroach, and you hear it make a crunchy sound as its exoskeleton is crushed. Which biomolecule is the exoskeleton made of that would make that crunchy noise?

A) Carbohydrates
B) Proteins
C) Lipids
D) Nucleic Acids

Answer 1

-Carbohydrates as it is made up of chitin which is complex carbohydrate i.e polysaccharide

Answer 2

The exoskeleton of a cockroach is made of chitin, a nitrogen-containing polysaccharide, which is a form of carbohydrates that makes a crunchy noise when crushed.

Step-by-step explanation:

The exoskeleton of a cockroach, which makes a crunchy noise when crushed, is made of a biomolecule called chitin. Chitin is a polysaccharide that contains nitrogen and is composed of repeating units of N-acetyl-ß-d-glucosamine, a modified sugar. Because chitin is a type of carbohydrate, the correct answer is A) Carbohydrates. Arthropods, including insects, crustaceans, and others, are protected by this tough material that forms their exoskeleton, which is illustrative of the diverse functions of carbohydrates in different animals.