The following points highlight the top sixteen properties of acidity and alkalinity. 1. The reaction of the tissues and tissue fluids of the body is nearly natural excepting gastric juice. The slight changes in reaction have a significant physiological effect. In case the reaction of the solution is made slightly more acid or more alkaline, the heart stops. 2. Acidity [...]
Indicators: Definition, Characteristics and Uses! Definition: Certain dyes which can determine the hydrogen ions in a solution are said to be Indicators. Characteristics: 1. The dyes are weak acids (or, less commonly, weak bases). 2. They have the property of dissociating in solution to yield ions of different colours from the un-dissociated molecules. 3. The pH at which dissociation will [...]
In this article we will discuss about:- 1. Definition of Diffusion 2. Characteristics of Diffusion 3. Physiological Role. Definition of Diffusion: The spreading of solute molecules throughout the water molecules is called diffusion. Experiment: When a lump of sugar is added to a glass of water, the sugar gradually disappears and, ultimately, a homogeneous solution is formed automatically. This is [...]