Specific immune respone

Question 1

Where are B-cell And T-cells formed

Answer 1

Bone marrow

Question 2

Where do B-cells and T-cells mature

Answer 2

T-cells - Thymus
B-cells - Bone marrow

Question 3

Naive B-cell

Answer 3

A B-cell that has never encountered an antigen before

Question 4

First step of the primary immune response

Answer 4

The naive B-cell has complementary receptors to the pathogens antigen and so they bind

Question 5

Second step of the primary immune response

Answer 5

The naive B-cell internalises and processes the pathogen and then displays it on the cell surface membrane as a processed antigen

Question 6

Third step of the primary immune response

Answer 6

The processed antigen is complementary to receptors on the helper t-cell so they bind. After the naive b-cell and helper t-cell bind, the helper t-cell releases a chemical which causes the naive b-cell to clone by MITOSIS and differentiate

Question 7

Forth step of the primary immune response

Answer 7

The naive b-cell differentiates into either a plasma cell or a memory b-cell

Question 8

Role of the plasmsa cell

Answer 8

Secretes monoclonal antibodies
These antibodies are complementary to the specific antigen on the pathogen. These antibodies attach to antigens on pathogens and destroy them

Question 9

Role of memory b-cell

Answer 9

The memory cell circulates the blood, ready to divide if the same antigen / pathogen is encountered again

Question 10

Secondary immune response

Answer 10

Much faster as memory b-cells will recognise the specific antigen on the pathogens surface so antibodies will be produced much faster and symptoms / ilness from the pathogen wont happen