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BIOLOGY

JAMB 2013 - Question 31

Biology 2013 JAMB Past Questions - Question 31: The chitin in the exoskeleton of many arthropods is strengthened by

Choose the most appropriate option for the gap .

The chitin in the exoskeleton of many arthropods is strengthened by

A: proteins.

B: calcium compounds.

C: organic salts.

D: lipids

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Correct Answer

Explanation

Chitin is made from carbohydrate and protein to form a tough, light and flexible material called exoskeleton when calcium carbonate(calcium compound) is added to chitin, V forms very hard material(exoskeleton) such as the outer covering (carapace) of crustaceans like prawn.