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  2. Cell death - Wikipedia

    en.wikipedia.org/wiki/Cell_death

    Overview of signal transduction pathways involved in apoptosis. Cell death is the event of a biological cell ceasing to carry out its functions. This may be the result of the natural process of old cells dying and being replaced by new ones, as in programmed cell death, or may result from factors such as diseases, localized injury, or the death of the organism of which the cells are part.

  3. Death - Wikipedia

    en.wikipedia.org/wiki/Death

    The human skull is used universally as a symbol of death. [1] Death is the end of life; the irreversible cessation of all biological functions that sustain a living organism. [2] The remains of a former organism normally begin to decompose shortly after death. [3] Death eventually and inevitably occurs in all organisms.

  4. Chemical process of decomposition - Wikipedia

    en.wikipedia.org/wiki/Chemical_process_of...

    This process does not occur at a uniform rate and thus some proteins are degraded during early decomposition, while others are degraded during later stages of decomposition. During the early stages of decomposition, soft tissue proteins are broken down. These include proteins that: line the gastrointestinal tract and pancreatic epithelium

  5. Decomposition - Wikipedia

    en.wikipedia.org/wiki/Decomposition

    The decomposition of food, either plant or animal, called spoilage in this context, is an important field of study within food science. Food decomposition can be slowed down by conservation. The spoilage of meat occurs, if the meat is untreated, in a matter of hours or days and results in the meat becoming unappetizing, poisonous or infectious.

  6. Cellular respiration - Wikipedia

    en.wikipedia.org/wiki/Cellular_respiration

    Cellular respiration is the process of oxidizing biological fuels using an inorganic electron acceptor, such as oxygen, to drive production of adenosine triphosphate (ATP), which contains energy. Cellular respiration may be described as a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical ...

  7. Cellular waste product - Wikipedia

    en.wikipedia.org/wiki/Cellular_waste_product

    Anaerobic respiration is correspondingly less efficient than aerobic respiration. In the absence of oxygen, not all of the carbon-carbon bonds in glucose can be broken to release energy. A great deal of extractable energy is left in the waste products. Anaerobic respiration generally occurs in prokaryotes in environments that do not contain oxygen.

  8. Putrefaction - Wikipedia

    en.wikipedia.org/wiki/Putrefaction

    Generally, the term decomposition encompasses the biochemical processes that occur from the physical death of the person (or animal) until the skeletonization of the body. Putrefaction is one of seven stages of decomposition; as such, the term putrescible identifies all organic matter (animal and human) that is biochemically subject to ...

  9. Autolysis (biology) - Wikipedia

    en.wikipedia.org/wiki/Autolysis_(biology)

    Failure of respiration and subsequent failure of oxidative phosphorylation is the trigger of the autolytic process. [1] The reduced availability and subsequent absence of high-energy molecules that are required to maintain the integrity of the cell and maintain homeostasis causes significant changes in the biochemical operation of the cell.