Chapter 11

Question 1

How many liters of blood are in the body?

Answer 1

5 liters of blood in the body.

There are 5 liters of blood in the body.

Question 2

How many red blood cells are there per mm3 of blood?

Answer 2

5 million red blood cells/ mm3 of blood

There are 5 million red blood cells/ mm3 of blood

Question 3

How many hemoglobin molecules are there per red blood cell?

Answer 3

280 million hemoglobin molecules/ red blood cell.

There are 280 million hemoglobin molecules/ red blood cell.

Question 4

How many 02 molecules can each hemoglobin molecule carry?

Answer 4

4 02 molecules!

Each hemoglobin molecule can carry 4 02 molecules!

Question 5

What are the functions of blood?

Answer 5

1. Transport of 02.
2. Water balance.
3. Body temperature.
4. pH balance.
5. Immunity.
6. Transport nutrients.
7. Transport Hormones.

Function of Blood

Question 6

What are the components of blood?

Answer 6

55% plasma or fluid.
>1% white cells and platelets.
45% red cells.

Components of Blood

Question 7

What are the components of plasma?

Answer 7

90% water, also contains proteins, glucose, vitamins, dissolved gases, wastes, hormones.

Components of Blood

Question 8

What is the primary function of red blood cells?

Answer 8

Primary function is transport of 02.

Red blood cells (erythrocytes)

Question 9

What is hemoglobin and its function?

Answer 9

Hemoglobin, a respiratory pigment, increases the bloods ability to carry 02. 1 L of blood can carry 200 mL of Oz. Composed of heme (iron containing pigment) and globin (protein).

Red blood cells (erythrocytes)

Question 10

Where does erythropoiesis occur?

Answer 10

Erythropoiesis occurs in the bone marrow.

Red blood cells (erythrocytes)

Question 11

What stimulates red blood cell production?

Answer 11

The kidneys release REF (renal erythropoietin factors) when 02 levels are low.

Red blood cells (erythrocytes)

Question 12

What is anemia?

Answer 12

Anemia is a condition of low 02 delivery. A person with anemia will have low energy levels. Caused often by hemorrhage or low iron levels.

Red blood cells (erythrocytes)

Question 13

What is albumins

Answer 13

a) albumins - helps maintain osmotic pressure balance by drawing water back into capillaries.

Question 14

What is globulins

Answer 14

b) globulins - produce antibodies for protection against disease.

Question 15

What is fibrinogen

Answer 15

c) fibrinogen - important in forming blood clots.

Question 16

What are three plasma proteins

Answer 16

Albumins
Globulins
Fibrinogen