Blood Homework

Keaton Rye

Chapter 6

1. What are the functions of blood, and what are its two main portions?
The blood transports, defends and regulates. It is the main transportation for air and other things that your body needs

2. What is the composition of plasma and what are the functions of plasma proteins?
Plasma is about 91% water and 9% of it is made up by a mix of salts and other molecules. Plasma proteins maintain homeostasis because they are able to get and release hydrogen ions.

3. What substances allow red blood cells (RBCs) to transport oxygen?
Hemoglobin substances

4. Why do RBCs have a bioconcave shape?
The shape comes about when they lose their nucleus during maturation. The biconcave shape allows them a greater surface are to apply for the diffusion of gases in and out of the cell.

5. Name and describe three disorders associated with RBCs.
(a). Anemia - when there is not enough red blood cells or the cells don't have enough hemoglobin
(b) Sickle-cell disease - The blood cells form sickles which makes it harder for oxygen to get through.
(c) Hemolytic disease - is a type of hemolytic anemia.

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6. What are the different blood types and what determines blood type?
The different blood types are A, B, AB, and O. Someone's blood type is determined by whether or not their blood has A or B or Rh antigens present in the blood.

7. Among the ABO types of blood, who can give blood to whom? Why?
Anti-A antibodies have combined with type A antigens, and anti-B antibodies have combined with type B antigens. Type O blood is compatible with all types. The rest depending on the type of antigens they have in the blood.

8. When does hemolytic disease in a newborn occur?
It occurs when an Rh positive mother has a baby that is Rh negative.

9. Tell how the functions of the cardiovascular system contribute to homeostasis?
The cardiovascular makes everything in the body work, and that allows homeostasis to occur.

10. In what way does the liver contribute to the functioning of the cardiovascular system?
The liver regulates blood pressure, because it takes in water.

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