Question

what is hemoglobin?
for 6th grade

Answer 1

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Hemoglobin is a protein in your red blood cells that carries oxygen to your body's organs and tissues and transports carbon dioxide from your organs and tissues back to your lungs

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Answer 2

Answer:

a red protein responsible for transporting oxygen in the blood of vertebrates. Its molecule comprises four subunits, each containing an iron atom bound to a haem group.

Explanation:

this is the factor for the red colour of our blood