Khoon Laal Kyu Dikhta Hai? – Ek Scientific Safar

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 Jab bhi humein chot lagti hai, sabse pehle aankhon ke saamne jo cheez aati hai vo hoti hai laal rang ka khoon. Par kya tumne kabhi socha hai ki khoon laal hi kyu hota hai? Kya vo hamesha laal hota hai? Kya kisi aur rang ka bhi ho sakta hai?

Aaj hum yeh sab jaanenge ek interesting aur science bhare safar mein.

🧬 Khoon Mein Kya Hota Hai?

Sabse pehle samajhte hain ki khoon mein kya hota hai:

  1. RBCs (Red Blood Cells) – Yeh khoon ka laal rang banate hain.

  2. WBCs (White Blood Cells) – Yeh humare immune system ko strong rakhte hain.

  3. Platelets – Zakhm bharne mein madad karte hain.

  4. Plasma – Ek transparent liquid jisme sab float karte hain.

💡 Hemoglobin Ka Khel

Khoon ke laal hone ka asli raaz chhupa hai ek molecule mein – Hemoglobin.

Hemoglobin ek protein hai jo RBCs mein hota hai. Iska kaam hota hai oxygen ko lungs se body ke har cell tak le jaana. Jab hemoglobin oxygen se milta hai to ek reaction hoti hai aur usse bright red colour dikhta hai. Isliye jab hum chot khaate hain aur oxygen exposure hota hai, khoon aur bhi laal dikhta hai.

Fun fact: Jab khoon veins mein hota hai (andar), vo kabhi-kabhi dark red ya blueish lagta hai. But vo optical illusion hota hai – real mein vo laal hi hota hai.

🧠 Kya Sab Praniyon Ka Khoon Laal Hota Hai?

Nahi! Yeh bhi ek mazedaar fact hai:

  • Octopus aur snails ka khoon neela hota hai – kyunki unmein hemocyanin hota hai.

  • Lizards ka kuch species ka khoon green hota hai – biliverdin ki wajah se.

Humans ka khoon laal isliye hota hai kyunki humare RBCs mein hemoglobin hota hai – aur iron ke saath milke oxygen bind karta hai, jiski wajah se laal rang aata hai.

🔬 Khoon Se Judi Kuch Amazing Baatein

  • Ek insaan ke sharir mein lagbhag 5 litre khoon hota hai.

  • Har second mein humare body mein 2 million new RBCs bante hain.

  • RBCs ka life span hota hai 120 din.

  • Hemoglobin iron se bana hota hai – isliye iron ki kami se anemia hota hai.

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