WAEC Biology 2022 Papers

Concept:Simple sugar is produced in green plants during photosynthesis, which occurs in the chloroplast.Explanation:Photosynthesis takes place inside the chloroplast.Chloroplasts contain chlorophyll, a pigment that absorbs light energy.This light energy drives the reaction between carbon dioxide ($\mathrm{CO_2}$) and water ($\mathrm{H_2O}$).The process forms glucose ($\mathrm{C_6H_{12}O_6}$), which is a simple sugar.Therefore, the chloroplast is the structure where simple sugar is produced.The vacuole mainly stores water and waste materials.The cytoplasm carries out many metabolic reactions but does not produce simple sugar.The cell wall gives support and protection to the plant cell.Thus, none of the other listed structures produce simple sugar.Answer:C. Chloroplast