Question

a) In relation to oxygenation, what is happening in the cells, tissues and the body?

b) Apply the above to a specific disease.

Answer 1

Ans) a) Oxygen is important to every cell, tissue in body.

- Oxygen, through a process called oxidation, chemically changes food and liquid into energy. It's this "oxygen fire" that contracts our muscles, repairs our cells, feeds our brains, and even calms our nerves. Not only that, but breathing is our body's chief cleansing tool.

b) Several factors are needed to continuously supply the cells and tissues in the body with oxygen:

• There must be enough oxygen in the air for breathing.
• Lungs must be able to inhale the oxygen-containing air — and exhale carbon dioxide
• Bloodstream must be able to circulate blood to the lungs, take up the oxygen and carry it throughout the body.

- A problem with any of these factors — for example, high altitude, asthma or heart disease — might result in hypoxemia, particularly under more extreme conditions, such as exercise or illness. When blood oxygen falls below a certain level, can experience shortness of breath, headache, and confusion or restlessness.