Why do plants need photosynthesis and cellular respiration?

During photosynthesis, plants produce the substance they require to survive and store it until they need it. During cellular respiration, plants carry out chemical reactions to derive energy from the products of photosynthesis.Click to see full answer. People also ask, why do plants use photosynthesis and cellular respiration?During photosynthesis, plants absorb sunlight and carbon dioxide from the air. Through a series of steps, much like cellular respiration, they convert these reactants into the products oxygen and glucose. The plants then can use the oxygen and glucose to make ATP in cellular respiration.Additionally, why does plant need photosynthesis? 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. Consequently, why do plants need cellular respiration? Like all other organisms, plants require energy to grow and thrive in their environment. The process of cellular respiration allows plants to break down glucose into ATP. Although plants use photosynthesis to produce glucose, they use cellular respiration to release energy from the glucose.Do plants perform photosynthesis and cellular respiration?Plants carry our both the processes, thus generating food and energy. In fact, cellular respiration is carried out continuously throughout their life, while photosynthesis is only carried out during the hours when sunlight is available.