Biological activities, definition, types and measurements

Biological activities occur as a result of certain effects from exposure to a molecule; these affect a metabolic or physiological response. Biological activity is defined as being applied to the simplest and most complex reaction and molecular systems. There are many sorts of biological activities, and these activities can be studied in vivo and in vitro. Biological activity always depends on the dose given to the living organism, so it is logical to show either beneficial or adverse effects that range from low to high. Absorption, distribution, metabolism, and excretion are the main action used to measure biological activity.