This molecular taxi does not require a driver, since it is riding inside a red blood cell, which could be described as a traveling container full of these hemoglobin molecules.
लाल रक्‍त कोशिका एक ऐसा ट्रक है, जिसमें ढेरों हीमोग्लोबिन अणु भरे होते हैं ।