Organic Chemistry
This specific type of chemistry is concerned with elements containing
carbon. Carbon is only the fourteenth most common element on earth, yet
it creates the largest number of different compounds. This type of
chemistry is important to the petrochemical, pharmaceutical, and textile
industries. All living organisms contain at least some amount of carbon in
their body.
Inorganic Chemistry
This branch of chemistry deals with substances not containing carbon and
that are not organic. Examples of such substances are minerals found in
the earth's crust and non-living matter. There are many branches of
inorganic chemistry. They include bioinorganic chemistry, nuclear science
and energy, geochemistry, and synthetic inorganic chemistry, just to name
a few.
Physical Chemistry
This type of chemistry deals with the discovery and description of the
theoretical basis of the behavior of chemical substances. This means also
that it provides a basis for every bit of chemistry including organic,
inorganic, and analytical. This chemistry is defined as dealing with the
relations between the physical properties of substances and their chemical
formations along with their changes.
Biochemistry
Biochemistry is a science that is concerned with the composition and
changes in the formation of living species. This type of chemistry utilizes
the concepts of organic and physical chemistry to make the world of living
organisms seem much clearer. Some people also consider biochemsitry as
physiological chemistry and biological chemistry. The scientists that study
biochemistry are called biochemists. They study such things as the
properties of biological molecules, including proteins, lipids,
carbohydrates, and nucleic acids. Other topics they focus on are the
chemical regulation of metabolism, the chemistry of vitamins, and
biological oxidation.
Analytical Chemistry
This kind of chemistry deals mostly with the composition of substances.
All these branches of chemistry must deal with each other one way or
another. If they didn't work in unison it would be impossible for these
chemistries to perform the functions we need for experiments. For
example you wouldn't be able measure the change of an organic substance
without knowing how to use analytical chemistry.