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Advanced Higher Biology: Unit 1- Cells And Proteins > ELISA > Flashcards

Flashcards in ELISA Deck (6)
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1
Q

What does ELISA ?

A

Enzyme linked immunosorbant assay

2
Q

What does ELISA use?

A

Antibodies to detect the presence of an antigen within a solution

3
Q

What are the 3 forms of ELISA?

A

Direct
Indirect
Sandwich

4
Q

Describe direct ELISA

A

The antigen is allowed to bind to the surface of a multiwell plate. A primary antibody, linked to a reporter enzyme, is added to the well and binds to the antigen

5
Q

Describe indirect ELISA

A

The antigen is allowed to bind to the surface of a multiwell plate. A primary antibody is added to the well and allowed to bind to the antigen. A secondary antibody, linked to a reporter enzyme, is then added, which binds to the primary antibody

6
Q

Describe sandwich ELISA

A

A capture antibody is bound to the surface of a multiwell plate. The antigen is added and allowed to bind to the capture antibody. A primary antibody, which binds to the antigen, is added to the well. A secondary antibody, linked to a reporter enzyme, is then added, which binds to the primary antibody