antibody

Question 1

what are the three main groups of antibodies working in different ways

Answer 1

opsonin

agglutinin (glue)

anti-toxin

Question 2

what is the bond in the antibody and hwat does it do

Answer 2

disulfide bridge
hold heavy polypeptide chain and light polypeptide chain together

Question 3

antibodies are specific to the

Answer 3

antigen

Question 4

antibodies are immunoglobulin what does that mean

Answer 4

globular proteins which respond to infection

Question 5

what is the difference between the variable region and constant

Answer 5

constant region is the same in all antibodies, same amino acid sequence

variable- different in every antibody as that region needs to be specific to an antigen.

Question 6

what does the hinge region do

Answer 6

allows flexibility of the antibody
can grip multiple antigens

Question 7

what does agglutinin do

Answer 7

antibody binds to two pathogens at a time, when many antibodies do this they can clump together making it easy for the pathogens to be engulfed by phagocytes.

Question 8

what are antitoxin

Answer 8

antibodies which bind to pathogens and render then harmless

Question 9

what are opsonin

Answer 9

antibodies which bind to pathogen antigens and act for a binding site for phagocytes, for easy binding