### person | scientist | chemist:

Analytical chemist
* analyze compounds.
* are always in search of selectivity.
* design new scientific instruments and develop methods for analysis.
* develop new techniques and instruments for analyzing unknown substances.
* perform analyses, make chemical measurements, and design and build instruments.
* study what substances are made of.
* tend to overlook X-ray techniques.
* use microprocessors to control instruments, collect data, and analyze results
  - xenon compounds as oxidizing agents

Atmospheric chemist
* Most atmospheric chemists study atmospheric components.
* come in three basic flavors.
* study atmospheric components, reactions, measurement techniques, and processes

### person | scientist | chemist:

Biochemist
* Many biochemists are interested in molecular biology-the study of genes and gene expression
  - study directly or use the protein molecules called enzymes
* Most biochemists deal with the chemistry of life process, such as metabolism, digestion and growth
  - have only a meagre understanding of, or interest in, evolution
  - know it as ubiquinone, an equally arcane name
* Some biochemists also find a career as a consultant in public- or private relations.
* are chemists
  - scientists
  - workers
* can specialize in a specific area of biochemistry.
* concern themselves with the chemistry of the living world.
* generally have much more chemistry than biology as their focus.
* investigate the chemical aspects of cells and blood, antibodies, enzymes, and hormones.
* look at how living organisms function at the molecular level.
* often draw a picture of an enzyme to use as a visual aid or map of the enzyme.
* refer to the interrupted reaction as a rate-limiting step.
* require a firm background in chemistry, biology, math, and physics for their work.
* specialize in the chemical composition and behavior of living things.
* squeeze self-evolving molecules into tiny plastic test tubes.
* study how organisms derive energy, use nutrients and reproduce.
* study the chemical composition of living organisms
  - chemicals that make up living things
* study the chemistry of life processes
  - living systems from viruses and bacteria to plants and animals
  - effects of soil, temperature, and light on plants
  - molecules that define the structure and function of living beings
  - organic chemistry of life
* think they're chemists.
* try to answer questions that are fundamental to life.
* use the suffix -in to designate proteins
  - term conformation when talking about protien shape
* work to develop new diagnostic tools and improve existing systems.
+ Enzyme, Enzyme structure: Biochemistry :: Molecular biology
  * Biochemists often draw a picture of an enzyme to use as a visual aid or map of the enzyme. This is hard to do because there may be hundreds or thousands of atoms in an enzyme. Biochemists can not draw all this detail. Instead, they use ribbon models as pictures of enzymes. Ribbon models can show the shape of an enzyme without having to draw every atom.

### person | scientist | chemist:

Biophysical chemist
* study protein structure and the functional structure of cell membranes.
+ Biophysical chemistry: Chemistry :: Biology
  * Biophysical chemists study protein structure and the functional structure  of cell membranes. For example, enzyme action can be explained in terms of the shape of a pocket in the protein molecule that matches the shape of the substrate molecule or its modification due to binding of a metal ion. Similarly, biophysical chemists study the structure and function of the biomembranes using model supramolecular structures. These include liposomes or phospholipid vesicles of different compositions and sizes.