enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Organic reaction - Wikipedia

    en.wikipedia.org/wiki/Organic_reaction

    Organic reactions can be organized into several basic types. Some reactions fit into more than one category. For example, some substitution reactions follow an addition-elimination pathway. This overview isn't intended to include every single organic reaction. Rather, it is intended to cover the basic reactions.

  3. Biological process - Wikipedia

    en.wikipedia.org/wiki/Biological_process

    Response to stimuli: a response can take many forms, from the contraction of a unicellular organism to external chemicals, to complex reactions involving all the senses of multicellular organisms. A response is often expressed by motion; for example, the leaves of a plant turning toward the sun (phototropism), and chemotaxis.

  4. Biogeochemistry - Wikipedia

    en.wikipedia.org/wiki/Biogeochemistry

    Biogeochemistry is the scientific discipline that involves the study of the chemical, physical, geological, and biological processes and reactions that govern the composition of the natural environment (including the biosphere, the cryosphere, the hydrosphere, the pedosphere, the atmosphere, and the lithosphere).

  5. Biology - Wikipedia

    en.wikipedia.org/wiki/Biology

    The simplest form of an organic molecule is the hydrocarbon, which is a large family of organic compounds that are composed of hydrogen atoms bonded to a chain of carbon atoms. A hydrocarbon backbone can be substituted by other elements such as oxygen (O), hydrogen (H), phosphorus (P), and sulfur (S), which can change the chemical behavior of ...

  6. Biochemistry - Wikipedia

    en.wikipedia.org/wiki/Biochemistry

    The chemistry of the cell also depends upon the reactions of small molecules and ions. These can be inorganic (for example, water and metal ions) or organic (for example, the amino acids, which are used to synthesize proteins). [7] The mechanisms used by cells to harness energy from their environment via chemical reactions are known as metabolism.

  7. Outline of biology - Wikipedia

    en.wikipedia.org/wiki/Outline_of_biology

    Surface anatomy – study of external features of a body; Biochemistry – study of the chemical reactions required for life to exist and function, usually a focus on the cellular level. Biophysics – study of biological processes through the methods traditionally used in the physical sciences.

  8. Composition of the human body - Wikipedia

    en.wikipedia.org/wiki/Composition_of_the_human_body

    Parts-per-million cube of relative abundance by mass of elements in an average adult human body down to 1 ppm. About 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium ...

  9. Bioorganic chemistry - Wikipedia

    en.wikipedia.org/wiki/Bioorganic_chemistry

    Biophysical organic chemistry is a term used when attempting to describe intimate details of molecular recognition by bioorganic chemistry. [ 3 ] Natural product chemistry is the process of Identifying compounds found in nature to determine their properties.