How much of the glucose produced does a plant typically use for respiration?

Plants typically use about half of the glucose they produce during photosynthesis for respiration. This glucose serves as an energy source needed for various vital processes, including growth, reproduction, and transport of nutrients. By undergoing respiration, plants convert glucose into energy (in the form of ATP) which is essential for their metabolic activities.

The remaining glucose is often stored as starch, which can be used later when energy is needed or during times when photosynthesis is not possible, such as at night. This balance ensures that the plant has enough energy for immediate needs while also maintaining reserves for future use.