4.2 Specific Cellular Defence

Question 1

Immune response to a usually harmless antigen

Answer 1

Allergy

Question 2

Molecule that can produce an immune response in the body

Answer 2

Antigen

Question 3

Cell that has been infected by pathogens and displays their antigen

Answer 3

Antigen-presenting cell

Question 4

Abnormal immune response to self antigens on its surface

Answer 4

Autoimmunity

Question 5

White blood cell with specific cell surface receptors, secretes antibodies into blood and lymph

Answer 5

B lymphocyte

Question 6

Selection of lymphocytes to produce clones when exposed to specific antigens

Answer 6

Clonal selection theory

Question 7

A group of genetically identical cells produced from one parent cell

Answer 7

Clone

Question 8

Monitoring of the tissue for infection by white blood cells

Answer 8

Immune surveillance

Question 9

Breakdown of cells

Answer 9

Lysis

Question 10

Lymphocyte remaining in the body for many years after recovery from infection

Answer 10

Memory cell

Question 11

A second exposure to the same infective agent

Answer 11

Secondary exposure

Question 12

Type of white blood cell, some kill infected cells while others stimulate the immune response

Answer 12

T lymphocyte