7B - The First Line Of Defence

Question 1

innate immune system

Answer 1

A component of the immune system that is composed of generalised and non-specific defences and/or responses to pathogens. AKA non-specific immune system.

Question 2

first line of defence

Answer 2

A component of the innate immune system characterised by the presence of physical, chemical and mirobiological barriers to keep pathogens out of the host organism.

Question 3

second line of defence

Answer 3

A component of the innate immune system characterised by the non-specific response to injury and/or pathogens by a variety of cells and molecules.

Question 4

non-specific

Answer 4

Describes a component of the immune system that responds the same way to all pathogens.

Question 5

physical barrier

Answer 5

A component of the first line of defence that features solid or fluid obstacles that block pathogen entry such as skin or mucus.

Question 6

chemical barrier

Answer 6

A component of the first line of defence that features the use of enzymes, toxins, and acids to protect against pathogen invasion.

Question 7

cuticle

Answer 7

A waxy protective film covering the surface of a plant leaf.

Question 8

gall

Answer 8

An abnormal growth of tissue in plants designed to limit the spread of an invading pathogen.

Question 9

trichomes

Answer 9

Small hairs on the surface of plants used to deter pathogens and/or insects.

Question 10

microbiological barrier

Answer 10

A component of the first line of defence in which the presence of normal flora limits the growth of pathogenic bacteria.

Question 11

cilium (pl. cilia)

Answer 11

Thin, hair-like projection that protrudes from eukaryotic cells.

Question 12

flora

Answer 12

Naturally occurring, non-pathogenic bacteria present in an organism.