Blood

Question 1

Normal pH?

Answer 1

7.3 - 7.45

Question 2

Plasma is an _ fluid

Answer 2

extracellular (ECF)

Question 3

Blood comprises both

Answer 3

ECF and ICF (plasma and blood cells)

Question 4

Blood helps maintain _

Answer 4

homeostasis

Question 5

Fonctions of blood

Answer 5

• transport
• pH balance
• protection

Question 6

Hematocrit

Answer 6

% of blood volume occupied by RBCs

Question 7

Normal hematocrit

Answer 7

45%

Question 8

Normal blood volume

Answer 8

normovolemia

Question 9

Lower blood volume

Answer 9

hypovolemia

Question 10

higher blood volume

Answer 10

hypervolemia

Question 11

% of body mass in reference individual

Answer 11

7%

Question 12

Liters in reference individual

Answer 12

5L

Question 13

Composition is similar to

Answer 13

ISF

Question 14

Blood mainly composed by

Answer 14

Water (more than 90%)

+ significant amount of ions

Question 15

In very small concentration in blood (exchange at capillaries)

Answer 15

Nutrients, wastes, respiratory gases

Question 16

Main difference between blood and ISF compositions

Answer 16

Proteins (colloids, 7g/dL) in blood

Question 17

Percentage of colloids

Answer 17

Albumins 60%
Globulins 35%
Fibrinogen 5%

Question 18

Blood composition may be approximated by

Answer 18

physiological saline (0.9g/dL NaCl)

Question 19

Separation of plasma proteins by :

Answer 19

• differential precipitation by salts
• sedimentation in ultracentrafuge
• electrophoretic mobility
• immunological characteristics

Question 20

What is electrophoresis?

Answer 20

Fractional method based on mvt of charged particles along a voltage gradient
(Apply current to a drop of plasma)

Question 21

Rate of migration in electrophoresis influenced by:

Answer 21

• number of protein
• distribution of charges
• molecular weight of protein