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Unit 8 Study Guide

1. How many liters of blood does the average adult have?

5-7 liters

2. What are the components of blood?

red and white cells, platelets, and plasma

3. What does the hematocrit measure?

Hematocrit measures the percentage of whole blood that is made up of red blood cells

4. What percentage of blood are cells?

45%

5. What percentage of blood is made of plasma?

55% of the blood n 45% is contributed by blood corpuscles or cells.

6. What do erythrocytes look like and what is their function?

It looks like a flat red disc that has round edges and a center lower then the edges. The function of erythrocytes is that it bringing oxygen to the body.

7. How do mature erythrocytes differ from immature ones?

Mature red blood cells are flexible biconcave disks that lack a cell nucleus and most organelles. Immature erythrocytes are very fragile.

8. What is a normal RBC Count?

A normal red blood cell count will vary depending on the age and sex of the person tested. Women range from about 4.2-5.4 million red blood cells. Men normal range, falling 4.7-6 million, and children have a very narrow normal red blood cell count range of about 4.6-4.8 million/uL.

9. What makes blood red?

That blood is rich in oxygen, which joins with hemoglobin to give the blood its bright red color.

10. How long does the average RBC live?

The average life of a human red blood cell is 120 days

11. What hormone controls the rate of RBC synthesis?

Red blood cell production, is mainly a protein hormone called erythropoietin

12. What element is part of a red blood cell?

Iron

13. What is sickle-cell anemia and what is its cause?

Sickle-cell anemia is an inherited condition caused by having abnormal hemoglobin, the protein that carries oxygen in the blood, which is caused by a genetic abnormality in the gene...