Here are 5 products of photosynthesis:1. Glucose (sugar) – the main food produced for the plant.2. Oxygen (O₂) – released into the air for animals and humans to breathe.3. Water (H₂O) – sometimes produced as a byproduct in certain stages.4. Cellulose – formed from glucose to build plant cell walls.5. Starch – stored form of glucose in plants for later use.