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Alexus [3.1K]
3 years ago
10

Nearly all of the oxygen carried by blood is bound to _____ an iron-containing protein that gives red blood cells their color.

Biology
1 answer:
stira [4]3 years ago
6 0
Most of the oxygen carried by blood is bound to hemoglobin an iron containing protein which also gives red blood cells their distinctive red colour
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Facilitated diffusion transport from a high to low concentration, which is through a concentration gradient and hence, no energy is required to perform the task.

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