The chloroplast is the organelle that is critical for glucose production.
An organelle is the part of a cell that has a specific purpose in a cell. The structure of the cell is made up of many different organelles. The chloroplast consists of chlorophyll and the cell wall. The chloroplast helps with photosynthesis. Animal cells do not contain chlorophyll as they do not need photosynthesis to generate energy. A plant is unable to turn the sun's rays into a food source without photosynthesis.