The of a test means the test can detect even very small concentrations of the antigen or antibody being analyzed, whereas the of a test focuses on the ability of a test to only detect the desired antigen or antibody without reacting with other unrelated substances.

SENSITIVITY

SPECIFICITY

Explanation:

Antigens refers to those particles that trigger the body to create an antibody. Antibodies on the other hand are part of the defence immune system of the body.

The tests used in detectection of antibodies and antigens help to us to get out some certain infections as well as other medical conditions.

Different antibodies that are present in the body can be detected and also be measured in body samples such as; blood samples,saliva sample.The results from this samples after the antibody tests can be use to diagnose for particular illnesses.

Therefore, the "Sensitivity" of a test means the test can detect even very small concentrations of the antigen or antibody being analyzed, whereas the "Specificity" of a test focuses on the ability of a test to only detect the desired antigen or antibody without reacting with other unrelated substances.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme