Lymphocytes and Cell Mediated Response

Question 1

What are lymphocytes part of?

Answer 1

The specific response to antigens

Question 2

What are the two types of lymphocytes?

Answer 2

B lymphocytes (B cells) and T lymphocytes (T cells)

Question 3

What are B cells and T cells created by?

Answer 3

Bone marrow stem cells

Question 4

Where do B cells mature?

Answer 4

Bone marrow

Question 5

Where do T cells mature?

Answer 5

Thymus

Question 6

What is the cell mediated response?

Answer 6

Response of T cells to a foreign antigen

Question 7

What occurs in the cell mediated response?

Answer 7

Receptors on T Cells bind to antigens on antigen presenting cells and cause T cell to divide rapidly by mitosis (clinal expansion). These cloned T cells can differentiate into different specialised T cells

Question 8

What do memory T cells do?

Answer 8

Enable a rapid response to reinfection of the same pathogen

Question 9

What do cytotoxic T cells do?

Answer 9

Kill abnormal cells and infected body cells. Release a protein called perforin which creates pores in the cell membrane allowing all substances to move into the cell causing cell death.

Question 10

What do helper T cells do?

Answer 10

Stimulate B cells to divide and secrete antibodies

Question 11

Can T cells stimulate phagocytosis of pathogens?

Answer 11

Yes