00:01
This question helps us review which type of immune white blood cells respond to which source of antigen.
00:09
So for our answer choices, we have extracellular antigens.
00:20
We have intracellular or cancer antigens.
00:29
We have parasites, bacteria, and we have pollen.
00:42
So for our extracellular antigens, these are typically antigens that will, respond to, say, our immunoglobulins.
00:52
These immunoglobulins basically help gather up these antigens inside the plasma or the blood, and they're going to be eaten up and digested by, say, macrophages or b cells.
01:13
We'll move on to parasites.
01:15
Parasites are extracellular organisms.
01:18
They're very large.
01:19
These are typically handled by eocinophils...