Blood Plasma, Haematology (physiology)

Question 1

Three components of the blood

Answer 1

Plasma (makes up 55% of the blood)
Buffy coat (<1%, consist of platelets and WBC)
Erythrocytes (makes up 45% of the blood)

Question 2

What are the constituents of blood plasma? (5)

Answer 2

Proteins
Nonprotein nitrogenous substances
Electrolytes
Respiratory gases
Organic nutrients

Question 3

What are the three groups of plasma proteins?

Answer 3

Albumin (60% of total plasma proteins)
Globulins (36% of total plasma proteins)
Fibrinogen (4% of total plasma proteins)

Question 4

Name the protein that haemoglobin binds to

Answer 4

Haptoglobin

Question 5

Functions of plasma proteins include: (5)

Answer 5

-Role as reserve proteins.
-Role for coagulation of blood.
-Transportation of mechanisms.
-Maintenance of osmotic pressure in blood.
-Role in viscosity of blood.

Question 6

What are the inorganic ions found in blood? (6)

Answer 6

-Potassium
-Sodium
-Calcium
-Phosphate
-Hydrogen carbonate
-Chloride

Question 7

What is an acute plasma protein (APP)?

Answer 7

Any protein whose concentration increases by 25% or more during certain inflammatory disorders.

Question 8

What are examples of APP? (4)

Answer 8

-Fibrinogen
-C-reactive protein
-Serum amyloid A
-alpha 1-acid glycopreotein

Question 9

C-reactive protein release is triggered by?

Answer 9

-Infection, trauma and surgery.

Question 10

What causes the ff:
1. Moderate changes in CRP
2. Small changes in CRP

Answer 10

1. Strenuous exercise, childbirth and heat stroke.
2. Psychological stress and several psychiatric illnesses.