2006-10-18 03:41:24 · 3 answers · asked by brazukinha 1 in Science & Mathematics ➔ Biology
It is a way for a plant to store excess glucose. Plants use glucose as energy, but starch can be stored more efficiently and for a longer period of time. So when a plant doesn't immediately need energy, it may convert glucose to starch for later usage.
2006-10-18 03:45:14 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋
Plants photosynthesize during the day, so excess glucose is stored as starch granules in cells (does not affect water potential of cells.) At hight, this stored starch is then converted back to glucose and to provide the basic energy to maintain basic cellular functions.
Hope it helps.
2006-10-19 05:14:53 · answer #2 · answered by Anonymous · 1⤊ 0⤋
In addition, starch is useful for storage unlike glucose, as starch is insoluble in water. Starch will not affect the water potential of cells, and therefore may be stored in large amounts without disrupting the water potential of the cell.
2006-10-18 05:27:44 · answer #3 · answered by polarIS 2 · 0⤊ 0⤋