To solve this problem, we need to match the items in Column I with the appropriate descriptions in Column II. Let's analyze each item:$\newline \bullet$(a) Centriole:$\newline$ - Centrioles are cylindrical structures found in animal cells that play a role in cell division.$\newline$ - They are involved in the formation of the basal body of cilia or flagella.$\newline$ - This matches with (iv).$\newline \bullet$(b) Chlorophyll:$\newline$