Immunity Flashcards
What is agglutination?
Where pathogens are clumped together to more easily be destroyed.
What bond connects heavy and light chain in antibodies?
Disulfide bridges
Why does antibodies having two variable regions matter?
So they can be complimentary to a specific pathogen and bind to two pathogens at a time. Allowing for agglutinating.
How does HIV replicate within a T Helper cell?
Glycoproteins binds to receptors on T helper cells.
Capsid is injected into T cell. RNA and enzymes (reverse transcriptase and integrase).
Reverse transcriptase is an enzyme converting single stranded RNA from HIV to double stranded DNA. This moves into T helper nucleus.
Integrase inserts HIV DNA into T helper cell DNA.
HIV DNA expressed into T helper cell. HIV proteins and HIV RNA synthesised.
New HIV virus released and T helper cell kicked.
