Question

why would plants and animals store carbohydrates​

Answer 1

Excess carbohydrates are stored as starch in plants and as glycogen in animals, ready for metabolism if the energy demands of the organism suddenly increase

Answer 2

Answer:

Why would plants store their energy as carbohydrates and not as fats, if fats are a more efficient energy store? Plants synthesize glucose from carbon dioxide, animals ingest carbohydrates in their diet and break them down into monosaccherides.