why do plants need photosynthesis and respiration
They need photosynthesis(1) and Respiration(2) because (1) They make use of carbon dioxide and sunlight to make glucose(sugar(food)). Excess glucose is stach and it is like our fats (2) Respiration is needed for breaking down glucose/starch for food.
A: Plants need photosynthesis because the process fuels them with the energy that they require to survive. Plants create energy through photosynthesis by absorbing sunlight and converting it into sugar, lipids, proteins and other organic compounds. These compounds are forms of chemical energy and are fundamental for sustained growth and survival.