NCERT In-Text 5.2 — Q1 - The Fundamental Unit of Life
Question: How do substances like CO₂ and water move in and out of the cell? Discuss.
Answer: **CO₂ and O₂** move in and out of the cell by **diffusion** — from high to low concentration, through the selectively permeable plasma membrane, without energy. **Water** moves by **osmosis** — the...
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