The exchange of carbon dioxide and oxygen gas between the cell and the atmosphere during photosynthesis takes place by:
Q1. The exchange of carbon dioxide and oxygen gas between the cell and the atmosphere during photosynthesis takes place by:
Answer: Diffusion
Explanation: Gases (CO₂ and O₂) move between cells and the atmosphere by simple diffusion — moving passively from areas of higher concentration to lower concentration without energy expenditure.