Ch33 human defence system

Question 1

pathogen

Answer 1

disease-causing organism

Question 2

general defence system

Answer 2

non-specific methods used to prevent the entrance of pathogens into the body and the killing of those that do

Question 3

specific defence system

Answer 3

or immune response in the defence against pathogens using antibodies or particular white blood cells

Question 4

immunity

Answer 4

the ability to defend against a disease

Question 5

antigen

Answer 5

a substance that causes lymphocytes to produce antibodies

Question 6

antibodies

Answer 6

are proteins produces by a lymphocyte in response to an antigen

Question 7

induced immunity

Answer 7

when the body contains (or has the ability to produce) specific antibodies against particular antigens

Question 8

active immunity

Answer 8

when a person has the ability to produce their own antibodies against a disease

Question 9

vaccine

Answer 9

a substance introduced into a person to induce an antibody response leading to immunity to that disease

Question 10

vaccination

Answer 10

introduction of a non-disease causing dose of a microbe so as to generate an active immune response

Question 11

passive immunity

Answer 11

when a person recieves the antibodies that have been made by another organism, against a disease, without the ability to produce their own antibodies