Lecture 6- B Cells and Antibody

Question 1

Define antibody

Answer 1

Y shaped antigen-specific proteins produced by B lymphocytes

Question 2

Define antigen

Answer 2

A foreign substance which induces an immune response in the body especially the production of antibodies

Question 3

What is antigen specificity ?

Answer 3

Antibody binds to a particular antigen with high affinity but not to other antigens

Question 4

What is another name for antibody?

Answer 4

Immunoglobulin

Question 5

What are antibody isotopes?

Answer 5

IgM, IgD, IgA, IgG, IgE

Different heavy chain constant regions produce antibodies with different properties

Question 6

What doesn’t the antibody isotope affect?

Answer 6

Doesn’t affect what it binds to

Question 7

What does the FAB region do?

Answer 7

Binds to the antigen

Question 8

What does the FC region do?

Answer 8

Interacts with other components of immunity

Question 9

What are the heavy chains ?

Answer 9

Inside long ones

Question 10

What is the FAB made of?

Answer 10

Light and heavy chains. Known as variable region (variable between antibodies)

Question 11

What is an epitope?

Answer 11

Part of an antigen molecule to which an antibody attaches itself

Question 12

What is the constant region made up of?

Answer 12

Only heavy chains

Question 13

Where would you find the FC region?

Answer 13

At the stem of the antibody

Question 14

Where do antibodies attach to B cells?

Answer 14

At the FC region