1. What is photosynthesis? 2. What pas is released as a by product of photosynthesis? 4. What is the role of chlorophyll in photosynthesis? 5. Through which part of the plant does carbon dioxide enter and oxyeen leave?

1. **What is photosynthesis?** Photosynthesis is a biochemical process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy stored in glucose. This process occurs primarily in the chloroplasts of plant cells, where carbon dioxide and water are used to produce glucose and oxygen, using sunlight as the energy source. 2. **What gas is released as a byproduct of photosynthesis?** The gas released as a byproduct of photosynthesis is oxygen (O₂). During the process, oxygen is produced when water molecules are split to provide electrons for the conversion of carbon dioxide into glucose. 3. **What is the role of chlorophyll in photosynthesis?** Chlorophyll is a green pigment found in the chloroplasts of plants, algae, and cyanobacteria. Its primary role in photosynthesis is to absorb light energy, particularly in the blue and red wavelengths, and convert it into chemical energy. This energy is then used to drive the reactions that convert carbon dioxide and water into glucose and oxygen. 4. **Through which part of the plant does carbon dioxide enter and oxygen leave?** Carbon dioxide enters the plant through small openings called stomata, which are primarily located on the underside of leaves. Oxygen, produced as a byproduct of photosynthesis, exits the plant through the same stomata.