Biology -About Vitamins

Can you please help me to fill in the blank.(can more than one word)

Vitamin A
~ It is needed to form a visual pigment for vision and keep the lining of the ( ) , the beathing system and the skin healthy.

~( )in carrots can be converted in to vitamin A in the liver

Vitmain D
~It assits the uptake of phosphate ions and calcium ions from blood into the cells. It is important for the formation of strong and healthy ( ) and ( )