Plasma Proteins + Immunoglobulins

Question 1

What are the characteristics and functions of IgA

Answer 1

Major component of colostrum
Also in tears, saliva, intestinal, respiratory genital tract secretions

Prevents attachment of bacteria’s/ virus to mucus membrane

Question 2

What are the characteristics and functions of IgM

Answer 2

Main antibody in primary response to an antigen

Promotes phagocytosis

Question 3

What are the characteristics and functions of IgD

Answer 3

May function as a antigen receptor

Question 4

What are the characteristics and functions of IgE

Answer 4

Causes release of histamine

Question 5

What is the function of albumin

Answer 5

Exert colloidal osmotic pressure and transport function

Question 6

What is the function of alpha1- anti trypsin (AAT)

Answer 6

Inhibits activity of protease- elastase- emphysema

Question 7

What is the function of cerruloplasmin?

Answer 7

Transport of copper

Question 8

What is the function of hemopexin

Answer 8

Binds heme and prevents loss of iron in urine

Question 9

What is the function of Transferrin

Answer 9

Transport of iron

Question 10

What is the function of fibrinogen

Answer 10

Blood coagulation

Question 11

What are the examples of globulins?

Answer 11

AAT, cerruloplasmin, hemopexin, haptoglobin, transferrin, alpha2- macroglobin, C-reactive protein, beta-2 microglobin, immunoglobins

Question 12

What are the characteristics and functions of IgG

Answer 12

Only Ig which crosses the placenta
Only Maternal antibody which protects the foetus

Neutralises bacterial toxins - make microorganisms easier to phagocytise