Here's a breakdown:

* Photosynthesis is the process by which plants, algae, and some bacteria use sunlight, water, and carbon dioxide to create their own food.

* Glucose is a simple sugar that serves as the basic building block for more complex carbohydrates, which provide energy for the organism.

While glucose is the main product, photosynthesis also produces oxygen (O2) as a byproduct. This oxygen is released into the atmosphere and is essential for the survival of many organisms, including humans.