Question

which organelle breaks down sugar molecules that supply energy to the cell?
golgi apparatus
nucleus
endoplasmic reticulum
mitochondrion

Explanation:

Mitochondria are the power - houses of the cell. They perform cellular respiration, breaking down sugar (glucose) molecules to produce ATP, the energy - currency of the cell. The Golgi apparatus is involved in modifying, sorting, and packaging proteins and lipids. The nucleus contains the cell's genetic material. The endoplasmic reticulum is involved in protein and lipid synthesis.

Answer:

D. mitochondrion