Question

What is the amount of $O_2$ supplied to tissues through every 100 mL of oxygenated blood under normal physiological conditions?

Answer 1

Explanation

In a normal person, about 15 g haemoglobin is present per 100 mL of blood.

1 g of hemoglobin combines with 1.34 mL $O_2$

Therefore, 100 mL oxygenated blood carries around 20 mL of oxygen $(15\times 1.34=20.1)$.

Out of 20 mL of $O_2$ in every 100 mL of oxygenated blood, 5 mL of $O_2$ is supplied to the tissues under normal conditions.

Final answer 5 mL