Kya Kabhi Socha Aapne?
Jab kabhi chot lagti hai aur khoon nikalta hai toh woh hamesha laal rang ka hota hai. Lekin kya kabhi socha ke yeh laal rang kahan se aata hai? Aur kya sach mein khoon hamesha laal hota hai ya kabhi kabhi alag rang bhi hota hai?
Aaj hum bilkul simple andaz mein samjhenge ke blood ka rang laal kyun hota hai aur is ke peeche kya science hai!
Blood Kya Hota Hai
Pehle samajhte hain ke blood asal mein hai kya kyunke blood sirf ek laal liquid nahi hai.
Blood hamare jism ka ek bohat zaroori fluid hai jo poore jism mein ghoomta rehta hai. Blood ka roughly 55 percent hissa plasma hota hai yeh ek yellowish liquid hota hai jis mein proteins، nutrients، aur hormones hote hain. Baaki roughly 45 percent mein teen tarah ke cells hote hain.
Pehle red blood cells hain yeh sabse zyada hote hain aur oxygen carry karte hain. Doosre white blood cells hain yeh infection se ladte hain. Teesre platelets hain yeh khoon band karne mein madad karte hain jab chot lage.
Laal rang sirf red blood cells ki wajah se aata hai baaki cheezein laal nahi hoti.
Red Blood Cells Kya Hote Hain
Red blood cells jinhein RBCs bhi kehte hain hamare blood mein sabse zyada cells hote hain. Ek chhoti si blood drop mein roughly 5 million red blood cells hote hain yeh sun kar hi hairat hoti hai!
Red blood cells ki shape bohat dilchasp hai yeh bilkul ek납작 disc ki tarah hoti hain jis ka darmen thoda andar ki taraf daba hua hota hai scientists is shape ko biconcave disc kehte hain. Yeh shape isliye khaas hai kyunke is se oxygen absorb karna zyada aasan hota hai surface area zyada hoti hai.
Red blood cells mein koi nucleus nahi hota yeh hamare jism ke unon cells mein se hain jo nucleus ke baghair kaam karte hain. Nucleus ki jagah red blood cells mein ek khaas protein hoti hai aur yahi protein unhe laal banati hai.
Hemoglobin Laal Rang Ka Asli Raaz
Ab aate hain asli raaz par hemoglobin.
Hemoglobin ek protein hai jo red blood cells mein hoti hai aur yahi protein blood ko laal rang deti hai. Har ek red blood cell mein roughly 270 million hemoglobin molecules hote hain yeh number itna zyada hai ke imagine karna bhi mushkil hai!
Hemoglobin ka kaam oxygen carry karna hai yeh oxygen ko lungs se lekar poore jism ke cells tak pohonchata hai. Lekin hemoglobin sirf ek carrier nahi yeh oxygen ke saath react bhi karta hai aur yahi reaction blood ko laal banati hai.
Hemoglobin mein ek khaas cheez hoti hai jise heme group kehte hain. Heme group mein ek iron yaani lohe ka atom hota hai aur yahi iron oxygen ke saath bind hota hai. Jab iron oxygen se milta hai toh ek khaas chemical reaction hoti hai jis sa laal rang paida hota hai.
Iron Ka Kirdaar Lohe Ki Wajah Se Laal
Yeh sochna ajeeb lagta hai ke hamare khoon mein loha hota hai lekin yeh bilkul sach hai!
Hemoglobin ke heme group mein jo iron atom hota hai jab yeh oxygen se milta hai toh ek compound banta hai jise oxyhemoglobin kehte hain. Oxyhemoglobin ka rang bright laal hota hai yahi woh khoon hai jo lungs se poore jism mein oxygen le jaata hai.
Jab oxygen deliver ho jaati hai aur hemoglobin wapas lungs ki taraf aata hai toh yeh deoxyhemoglobin ban jaata hai matlab oxygen ke baghair hemoglobin. Deoxyhemoglobin ka rang thoda dark laal ya maroon hota hai.
Yahi wajah hai ke arteries ka khoon jo oxygen se bhara hota hai zyada roshan laal hota hai. Aur veins ka khoon jo oxygen deliver kar chuka hota hai thoda dark laal hota hai. Lekin ek common galat fehmi hai ke veins ka khoon neela hota hai yeh bilkul ghalat hai veins ka khoon bhi laal hi hota hai، sirf thoda dark.
Neeli Veins Ka Raaz
Bahut se logon ko lagta hai ke unki veins ka khoon neela hota hai kyunke haath par veins neeli nazar aati hain. Lekin yeh sach nahi.
Veins neeli is liye nazar aati hain kyunke roshni jab skin se guzarti hai toh alag alag wavelengths alag alag depth tak pohonchti hain. Laal roshni skin ke andar tak pohonch jaati hai aur absorb ho jaati hai lekin neeli roshni wapas reflect ho jaati hai. Isliye veins jo skin ke neeche hoti hain neeli nazar aati hain lekin andar khoon laal hi hota hai!
Agar aap kabhi surgery ke doran ya blood test ke waqt apni vein ka khoon dekhein woh hamesha dark laal hoga neela nahi.
Blood Itna Zaroori Kyun Hai
Ab samajhte hain ke blood itna zaroori kyun hai sirf laal rang se zyada.
Blood hamare jism ka transport system hai.Yeh oxygen lungs se lekar har cell tak pohonchata hai aur carbon dioxide wapas lungs tak laata hai taake hum saans ke zariye bahar nikal sakein. Yeh nutrients jo hum khaate hain intestines se lekar har cell tak pohonchata hai. Yeh waste products cells se lekar kidneys aur liver tak pohonchata hai taake woh filter ho sakein.
Blood hamare immune system ka bhi hissa hai white blood cells infection se ladte hain aur antibodies banate hain. Blood hamare jism ka temperature control karta hai garmi poore jism mein distribute karta hai. Aur blood hamare jism ko heal karta hai platelets aur clotting factors milkar chot ki jagah par khoon band karte hain.
Blood Groups Kyun Alag Hote Hain
Yeh bhi ek dilchasp topic hai kuch log A group ke hain، kuch B، kuch AB، aur kuch O. Yeh kya hota hai?
Red blood cells ki surface par khaas antigens hote hain yeh chhote chhote proteins hain. Agar A antigen hai toh A blood group، agar B hai toh B، dono hain toh AB، aur koi nahi toh O blood group.
Aur phir Rh factor bhi hota hai agar ek aur khaas antigen hai toh positive nahi hai toh negative. Isliye blood groups mein plus aur minus bhi hota hai A+، A-، B+، B-، AB+، AB-، O+، O.
Yeh blood groups is liye zaroori hain kyunke agar ghalat blood group ka khoon kisi ko diya jaaye toh immune system use attack karta hai yeh bohat khatarnak ho sakta hai.
Kuch Janwar Ka Blood Laal Nahi Hota
Yeh ek bohat dilchasp baat hai sirf insaan aur mammals ka blood laal nahi hota kuch janwar ka blood alag rang ka hota hai!
Octopus aur squid ka blood neela hota hai kyunke unke blood mein iron ki jagah copper hota hai. Copper oxygen ke saath milta hai toh neela rang paida hota hai.
Sea cucumber ka blood yellow hota hai kyunke unk mein ek alag oxygen carrying compound hota hai jis ma vanadium metal hoti hai.
Horseshoe crab ek qadeem samundri janwar ka blood neela hota hai aur yeh blood medical science mein bohat keem ti hai kyunke yeh bacteria detect karne mein madad karta hai.
Toh blood ka rang is baat par depend karta hai ke oxygen carry karne ke liye kaunsa metal use ho raha hai iron se laal، copper se neela!
Pakistan Mein Blood Donation Zaroori Maloomat
Pakistan mein khoon ki zaroorat bohat zyada hai accidents، operations، aur different bimariyon mein khoon ki zaroorat hoti hai.
Pakistan mein blood donation ek bohat zaroori aur noble kaam hai. Ek healthy insaan roughly har 3 mahine mein ek baar blood donate kar sakta hai yeh donation kisi ki zindagi bacha sakta hai. Blood donation se donor ka bhi faida hota hai naya fresh blood body mein banta hai.
Pakistan mein Safe Blood Transfusion Program aur kai private organizations blood donation campaigns chalate hain. Agar aap blood donate karna chahte hain toh apne qareeb kisi hospital ya blood bank se rabta karein aapka ek donation kisi ki poori zindagi badal sakta hai!
Aakhri Baat Laal Rang Ki Qeemat
Blood ka laal rang sirf ek color nahi yeh zindagi ka rang hai. Hemoglobin mein iron، oxygen ke saath react karta hai aur yeh reaction itni chhoti si chemistry se itna bada kaam karta hai ke poora jism zinda rehta hai.
Har baar jab aap apna khoon dekhein yaad karain ke us laal rang mein karoron red blood cells hain، unin mein billions of hemoglobin molecules hain، aur un mein iron atoms hain jo oxygen carry karke aapko zinda rakh rahe hain!
Zindagi ka raaz ek chhote se iron atom mein chhupaا ha yeh soch kar hairat hoti hai!
source: Think Like Science
Kya aap jaante hain ke jis tarah hamare jism ke andar khoon ka ek poora system kaam karta rehta hai usi tarah Zameen ke andar bhi ek bohat bada aur powerful system kaam karta rehta hai jo kabhi kabhi earthquake ki shakal mein bahar aata hai! Agar aap jaanna chahte hain ke yeh kaise hota hai toh hamare is article mein zaroor parein Earthquake Kyun Aata Hai bilkul simple aur asan andaz mein samjhaya gaya hai!