Lecture 2 - Foreign Activators

Question 1

Define foreign activators

Answer 1

Molecules that originate outside of the body

e.g microbes, allergens, foreign tissues

Question 2

In what time frame after infection does the innate immune response occur?

Answer 2

6-12 hours

Question 3

In what time frame after infection does the adaptive immune response occur?

Answer 3

12hrs-7 days

Question 4

What are soluble receptors and where are they found?

Answer 4

Receptors secreted from cells, they are found in:
Blood
Plasma
Lymph
Mucosal secretions

Question 5

What are cell surface receptors and where are they found?

Answer 5

Receptors found on the surface of cells, they are fund on:
Macrophages
Neutrophils
Lymphocytes
Other somatic cells

Question 6

True or false, both innate and adaptive system receptors can discriminate self and non self antigens?

Answer 6

True

Question 7

How are innate receptors encoded and what does this mean with regards to diversity?

Answer 7

They are encoded into the germline, meaning they have limited diversity

Question 8

How are adaptive receptors encoded and what does this mean with regards to diversity?

Answer 8

They are encoded by genes, meaning they have massive diversity

Question 9

Do innate cell receptors generally recognise structures common to or unique to different microbes?

Answer 9

Common to different microbes

Question 10

Do adaptive cell receptors generally recognise structures common to or unique to different microbes?

Answer 10

Unique to different microbes

Question 11

Which branch of the immune system’s receptors are pre coded in order to produce a more rapid response, innate or adaptive?

Answer 11

Innate