Why do plant cells contain tens of times more carbohydrates than animal cells?

Carbohydrates store energy in the form of starch, which, depending on the type of carbohydrate, provides either simple or complex sugars. Complex sugars, known as polysaccharides, provide a constant supply of energy, while simple sugars, monosaccharides, and disaccharides provide a faster boost before dissolving. Animals obtain these starches through foods, especially those made from plants such as grains and bread. Plants make their own carbohydrates through photosynthesis, using energy absorbed from light to combine carbon dioxide and water into more complex organic molecules. Therefore, plant cells contain more carbohydrates than animal cells.