Question:

Exoskeleton of arthropods is composed of:

Updated On: May 2, 2025
  • Cutin
  • Cellulose
  • Chitin
  • Glucosamine
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The Correct Option is C

Solution and Explanation

The exoskeleton of arthropods is a key structural feature that provides protection and support to these organisms. It is a hard, external covering composed of a particular type of complex carbohydrate. The options provided are:
  • Cutin
  • Cellulose
  • Chitin
  • Glucosamine
Among these, the correct material that makes up the exoskeleton of arthropods is chitin.
Chitin is a long-chain polymer of N-acetylglucosamine, which is a derivative of glucose. It is a primary component found in the exoskeletons of arthropods and the cell walls of fungi, making it highly suitable for providing both strength and flexibility.
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Concepts Used:

Animal Kingdom

Animals are eukaryotic, multicellular species that belong to the Kingdom Animalia. Every animal has a distinct characteristic. They get energy either by feeding on plants or on other animals. There are millions of species that have been recognized, few shares similar characteristics while others vary drastically.

Kingdom Animalia comprises all animals. In the midst of the five kingdoms, the largest kingdom is the animal kingdom. Animals are multicellular eukaryotes. Though, like plants, they do not possess chlorophyll or a cell wall. Therefore, members of the animal kingdom indicate a heterotrophic mode of nutrition. Kingdom Animalia is further classified into ten different subphyla based on their body designs or differentiations.

The different phyla of the Kingdom Animalia are as follows:

  1. Porifera
  2. Coelenterata (Cnidaria)
  3. Platyhelminthes
  4. Nematoda
  5. Annelida
  6. Arthropoda
  7. Mollusca
  8. Echinodermata
  9. Hemichordata
  10. Chordata

Read More: Classification of Animal Kingdom