The oxygen dissociation curve of haemoglobin | vedclass

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(A) The oxygen dissociation curve of haemoglobin is a sigmoid ($S$-shaped) curve. This curve is obtained when the percentage saturation of haemoglobin

Vedclass · Accepted Answer

Sigmoid

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(A) The oxygen dissociation curve of haemoglobin is a sigmoid ($S$-shaped) curve. This curve is obtained when the percentage saturation of haemoglobin with $O_2$ is plotted against the partial pressure of oxygen $(pO_2)$. The sigmoid shape is due to the cooperative binding of oxygen to the four haem groups of the haemoglobin molecule,where the binding of the first oxygen molecule increases the affinity of the remaining haem groups for subsequent oxygen molecules.

The oxygen dissociation curve of haemoglobin is:

Similar Questions

How does carbon monoxide inhibit the transport of oxygen?

Which of the following equations is correct regarding the transport of oxygen?

$A$: Major part of carbon dioxide is transported in the form of sodium bicarbonate.
$R$: $0.3 \; ml$ of carbon dioxide is transported per $100 \; ml$ of blood in dissolved state in plasma of blood.

Haemoglobin forms a compound with

$100 \ ml$ of oxygenated blood contains:

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