Question

Plants do photosynthesis to make the glucose and cellular respiration to break the glucose down for energy.

Answer 1

Plants perform photosynthesis because it generates the food and energy they need for growth and cellular respiration. ... For plants to perform photosynthesis they require light energy from the sun, water and carbon dioxide. Water is absorbed from the soil into the cells of roots. And during the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.

So true.....