Missed Qs Flashcards
1
Q
Can CD8+ CTL kill
CD4+ T-Cells?
A
Yes.
2
Q
What does CTL do?
A
Lyse targets by synthesize perforin and granzymes.
3
Q
TI
A
T-cell independent
4
Q
TD
A
T-cell dependent
5
Q
Do TI antigens activate T-cells?
A
No.
So they do not produce cytokines that activate B cells.
they only activate IgM
6
Q
Immune tolerance can only be induced by
A
adaptive immune system: B, T and
7
Q
Can innate immune cells be involved with autoimmunity?
A
No. Only adaptive
8
Q
Antigenic variation
A
way for pathogens to escape immune system. alter surface antigens to escape varients
9
Q
Which lead to formation of circulating ab?
attenuated or inactive vaccines?
A
both
10
Q
receptors of B cells recognize antigens in what?
A
native form
11
Q
BCRs protect against _______ toxins
A
extracellular
12
Q
What produced hole in membrane?
A
12-18 C9s
