NCERT In-text 5.3 — Q3 - Life Processes
Question: How is oxygen and carbon dioxide transported in human beings?
Answer: **Oxygen (O₂) transport:** – O₂ diffuses from **alveoli into blood** at the lungs. – Binds to **haemoglobin** in **red blood corpuscles (RBCs)**, forming **oxyhaemoglobin**. – Carried to body tissu...
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