Why is the partial pressure of oxygen low in tissue cells?

1 Answer
Mohan M.
Aug 7, 2016

Tissues consume oxygen . When oxygen is used it's partial pressure becomes low.

Explanation:

Oxygen in air is 20 volume, blood oxygen is lower than air, tissue oxygen is lower than blood. Gases always move from higher to lower pressure. If oxygen pressure in tissue is equal to blood tissues will never get oxygen . This causes suffocation of tissues

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