Terms, Units, Symbols and Expressions Commonly used by Scientific Community

In my fifteen years of teaching undergraduates and postgraduates in various institutions at the degree college as well as university levels in India and overseas and research career I have found students, research scholars, and even teachers of biology and other disciplines of science ignorant of various terms, units of measurement, their symbols, expressions, and appropriate use. It is for this reason that I have given herein some of these items to memorize as much as possible and facilitate their routine day-to-day working of teaching-learning process, both theory and practical, and research activities. Hence, I first begin here with the emphasis that the quantity of mass is expressed as kilograms or moles, while the potentials for transfer are expressed in various ways:

Gases: pressure or partial pressure (pascals)

Water: water potential (pascals, joules per kilogram)

Hydrogen ions in water: pH units

Solutes in water: chemical potential (or concentration or negative logarithm of concentration or activity)