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Red blood cells carry oxygen throughout the body, which is an essential component of most cellular activities. When they stop functioning correctly (as happens in diseases like sickle-cell anemia and leukemia or with poisons like carbon monoxide), it reduces the flow of oxygen and can impair or kill cells.

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What happens to the concentration of the blood glucose if not enough insulin is produced?

If not enough insulin is produced, the concentration of blood glucose will increase because insulin is responsible for helping glucose enter cells to be used for energy. Without enough insulin, glucose remains in the bloodstream, leading to high blood sugar levels, a condition known as hyperglycemia.


What does a person with anemia look pale?

A person with anemia may appear pale because their blood cells are not able to carry enough oxygen throughout their body. This can result in a decrease in the amount of oxygenated blood circulating, leading to a paler complexion.


How does a person feel with out enough oxygen in the blood?

When a person does not have enough oxygen in their blood, they may experience symptoms such as shortness of breath, weakness, confusion, dizziness, and rapid heartbeat. Severe cases can lead to cyanosis (bluish color of the skin and mucous membranes) and loss of consciousness. It is important to seek medical attention if experiencing symptoms of low oxygen levels in the blood.


Can a person with AO genotype give blood to a person with O blood?

Yes, a person with AO genotype can donate blood to a person with blood type O because type O can receive blood from A and O blood types. The A from the donor's blood will not cause a reaction with the recipient's O blood.


What can a person with type B blood receive?

a person with O+/- blood can only receive O+/- blood respectively. O+ can give blood to any other + blood type, and O- can give blood to anyone.