The cell wall of fungi is made up of chitin.
$(i)$ What is the chemical nature of chitin?
$(ii)$ What is the mode of nutrition in fungi?

(N/A) $(i)$ Chitin is a complex polysaccharide,specifically a nitrogen-containing derivative of glucose known as $N$-acetylglucosamine.
$(ii)$ Fungi exhibit a saprophytic mode of nutrition,where they absorb dissolved organic nutrients from dead and decaying matter by secreting digestive enzymes.