Question

what is the function of starch?
a used by plants to form walls around cells
b used by certain animals to form an external skeleton
c used by animals to store energy
d used by plants to store energy

Explanation:

Starch is a polysaccharide. Plants produce glucose during photosynthesis and store it as starch for later energy - use. Cell walls in plants are mainly made of cellulose. Chitin is used by some animals for exoskeleton formation. Glycogen is the energy - storage molecule in animals.

Answer:

d. Used by plants to store energy