Distinguish between demand and quantity demanded. Do the same for supply and quantity supplied.

What will be an ideal response?

Quantity demanded is the number of units consumers wish to buy at a specific price over a specific period. The quantity demanded depends upon the price charged. Demand, or a demand schedule, shows how the quantity demanded of some product for a specific period will change as the price of the product changes, holding all other determinants of quantity demanded constant. On a demand curve, quantity demanded is a single point.
Similarly, quantity supplied is the number of units sellers are willing to sell over a specific period at a specific price. Supply, or a supply schedule, is a table showing how the quantity supplied of some product for a specific period changes as the price of the product changes, holding all other determinants of quantity supplied constant. In a supply curve, quantity supplied is a single point.