BIO-CHEMISTRY Flashcards
A basic unit of matter that consists of dense, central nucleus surrounded by a cloud of negatively charged electrons.
atom
An electrically neutral group of at least two atoms in a definite arrangement held together by very strong (covalent) bonds
molecule
a pure chemical substance consisting of two or more different chemical elements that can be separated in to simpler substances by chemical reactions
compound
a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus
element
a charged particle formed by the loss or gain of one or more electrons
ion
any member of a large class of chemical compounds whose molecules contain carbon except for the oxides e.g. carbon dioxide
organic compound
are considered to be of a mineral, not biological origin
inorganic compound
Why universal solvent-polar and ionic molecules will dissolve in water
importance in animals
importance in plants
explain the property of cohesion between water molecules
importance in animals
importance in plants
explain property of high specific heat capacity
importance in animals
importance in plants
explain property of high latent heat of vaporisation
importance in animals
importance in plants
explain property of denity of ice compared to water
importance in animals
importance in plants
