Question

The fungal cell wall is made up of
A. Chitin
B. Cellulose
C. Pectin
D. Peptidoglycan

Answer 1

Fungi are a large group of organisms that range from unicellular yeasts to multicellular mushroom bodies. They form a large number of decomposers. The mode of nutrition is heterotrophic. The fungi are examples of eukaryotic cells that have cell walls made up of the same material that makes the exoskeleton in arthropods.

Complete answer: The fungi kingdom consists of a large number of unicellular as well as multicellular species. The fungi consist of various yeast, moulds, and mushroom species. Most of the fungi are found growing over rotten food or dead and decaying matter. They are heterotrophic in nature. They depend on other organisms for their food. The fungi cells are eukaryotic and consist of a chitin cell wall that makes them flexible as well as resistant to stress. Chitin is a biopolymer that can be found in exoskeletons of arthropods, beaks of cephalopods, scales of fishes, etc. Due to the presence of chitin, the fungal cells are resistant to various stress factors. Fungi are found almost everywhere on Earth. Most of the fungi are parasitic and thus, cause various infections in humans as well as other animals. The mushroom serves as a rich source of protein for humans and makes an important unit of a healthy diet.
Cellulose is the main component of plant cell wall composition. Pectin is also one of the components of plant cell walls. On the other hand, peptidoglycan is the key component of bacterial cell walls.
Hence, the correct answer is option A.

Note: The chitin is made up of repeating units of N-acetyl-D-glucosamine. The chitin polymer has more strength as compared to cellulose. The chitin in its real form is translucent, but in various arthropods, cephalopods and fishes, it occurs in modified forms.