Mitochondrion
Health dictionary
Untitled Document
Search :      

Art dictionary
Financial dictionary
Hollywood dictionary
Insurance dictionary
Literature dictionary
Real Estate dictionary
Tourism dictionary

 
  Mitochondrion



Mitochondrion

    Plural: mitochondria. A cellular structure in the cytoplasm that provides energy to the cell. Each cell contains many mitochondria. In humans, a single mitochondrion contains 37 genes on a circular mitochondrial DNA, compared with about 35,000 genes contained in the nuclear DNA.

RELATED TERMS
--------------------------------------

Mitochondria
Self-replicating membrane-bound cytoplasmic organelles in most eukaryotic cells that complete the breakdown of glucose. Singular: mitochondrium.

Cytoplasm
The living matter within a cell (excluding the nucleus) that is responsible for the function of the cell (for example, protein synthesis).

Cell
Fundamental structural unit of all life. The cell consists primarily of an outer plasma membrane, which separates it from the environment; the genetic material (DNA), which encodes heritable information for the maintainance of life; and the cytoplasm, a heterogeneous assemblage of ions, molecules, and fluid.

Mitochondrion
Plural: mitochondria. A cellular structure in the cytoplasm that provides energy to the cell. Each cell contains many mitochondria. In humans, a single mitochondrion contains 37 genes on a circular mitochondrial DNA, compared with about 35,000 genes contained in the nuclear DNA.

Genes
Basic, functional units of heredity, each occupying a specific place on a chromosome.

DNA
Deoxyribo-Nucleic acid. DNA molecules carry the genetic information necessary for the organization and functioning of most living cells and control the inheritance of characteristics.



SIMILAR TERMS
--------------------------------------

Mito doctors
All doctors near Mito, Japan. Doctors who can assist a patient in Mito.

Mitochondria
Self-replicating membrane-bound cytoplasmic organelles in most eukaryotic cells that complete the breakdown of glucose. Singular: mitochondrium.

Mitochondrial heteroplasmy
An atypical condition characterized by the presence of more than one type of mitochondrial DNA in a single individual. Normally, each individual has only one type of mitochondrial DNA, inherited from his or her mother through the egg at fertilization. (Mitochondria from the sperm are systematically eliminated by the egg at fertilization.)Cloned organisms may exhibit mitochondrial heteroplasmy (having a mixture of mitochondria from both the donor cell and the recipient egg) because this elimination system may be bypassed during the cloning process.

Mitochondrium
Self-replicating membrane-bound cytoplasmic organelles in most eukaryotic cells that complete the breakdown of glucose. Plural: mitochondria.

Mitogen
A substance that stimulates the proliferation of many different clones of lymphocytes.

Mitomycin
Mitomycin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): mitomycin.

Mitosis
The division of the cell's nucleus and nuclear material of a cell; consists of four stages: prophase, metaphase, anaphase, and telophase. Mitosis occurs only in eukaryotes. The DNA of the cell is replicated during interphase of the cell cycle and then segregated during the four phases of mitosis.

Mitoxantrone
Mitoxantrone is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): mitoxantrone.



PREVIOUS AND NEXT TERMS
--------------------------------------

Myelogram
A specific X-ray study that uses an injection of a dye or contrast material into the spinal canal to allow careful evaluation of the spinal canal and nerve roots.

Male factor infertility
Condition in which a male patient is infertile for such reasons as very low sperm count, sperm that cannot swim properly, sperm that are unable to penetrate the egg, or blocked sperm ducts.

Methylation
A biochemical process involving the addition of chemical tags called methyl groups (-CH3) to DNA. Methylation can be a signal for a gene or a section of a chromosome to turn off gene expression and become inactive or "silent".

Minor H antigens
Or minor histocompatibility antigens. A group of proteins (in addition to those encoded by the major histocompatibility complex (MHC) that can cause transplant tissue rejection. Minor H antigens can cause tissue rejection even when donor and recipient are matched for MHC. Immune response to minor H antigens is far less potent than response to MHC-encoded proteins, so the rejection is a slower process.

Mitochondrial heteroplasmy
An atypical condition characterized by the presence of more than one type of mitochondrial DNA in a single individual. Normally, each individual has only one type of mitochondrial DNA, inherited from his or her mother through the egg at fertilization. (Mitochondria from the sperm are systematically eliminated by the egg at fertilization.)Cloned organisms may exhibit mitochondrial heteroplasmy (having a mixture of mitochondria from both the donor cell and the recipient egg) because this elimination system may be bypassed during the cloning process.

Mitochondrion

Monozygotic twins
Twins derived from one egg and one sperm (often called identical twins).

Morula
The preimplantation embryo 3-4 days after fertilization, when it is a solid mass composed of 12-32 cells (blastomeres). After the eight-cell stage, the cells of the preimplantation embryo begin to adhere to each other more tightly, becoming "compacted". The resulting embryo resembles a mulberry and is called a morula (Latin: morus = mulberry).

Multipotent stem cells
Stem cells from the embryo, fetus, or adult, whose progeny are of multiple differentiated cell types and usually, but not necessarily, all of a particular tissue, organ, or physiological system.

Mutation
A change in DNA that alters a gene and thus the gene's product, leading in some cases to deformity or disease. Mutations can occur spontaneously during cell division or can be triggered by environmental stresses, such as sunlight, radiation, and chemicals.

Magnesium sulfate
One of a group of drugs called tocolytics used to stop preterm labor.

   We thank you for using the Health Dictionary to search for Mitochondrion. If you have a better definition for Mitochondrion than the one presented here, please let us know by making use of the suggest a term option. This definition of Mitochondrion may be disputed by other professionals. Our attempt is to provide easy definitions on Mitochondrion and any other medical topic for the public at large.
 
This dictionary contains 59020 terms.      









  
                    © Health Dictionary 2005 - All rights reserved -

   itochondrion / mtochondrion / miochondrion / mitchondrion / mitohondrion / mitocondrion / mitochndrion / mitochodrion / mitochonrion / mitochondion / mitochondron / mitochondrin / mitochondrio / mmitochondrion / miitochondrion / mittochondrion / mitoochondrion / mitocchondrion / mitochhondrion / mitochoondrion / mitochonndrion / mitochonddrion / mitochondrrion / mitochondriion / mitochondrioon / mitochondrionn / nitochondrion / jitochondrion / kitochondrion / ,itochondrion / itochondrion / mtochondrion / mi5ochondrion / mi6ochondrion / miyochondrion / mihochondrion / migochondrion / mifochondrion / mirochondrion / mi4ochondrion / mit9chondrion / mit0chondrion / mitpchondrion / mitlchondrion / mitkchondrion / mitichondrion / mit8chondrion / mitoxhondrion / mitoshondrion / mitodhondrion / mitofhondrion / mitovhondrion / mito hondrion / mitocyondrion / mitocuondrion / mitocjondrion / mitocnondrion / mitocbondrion / mitocgondrion / mitoctondrion / mitoch9ndrion / mitoch0ndrion / mitochpndrion / mitochlndrion / mitochkndrion / mitochindrion / mitoch8ndrion / mitochobdrion / mitochohdrion / mitochojdrion / mitochomdrion / mitocho drion / mitochonerion / mitochonrrion / mitochonfrion / mitochonvrion / mitochoncrion / mitochonxrion / mitochonsrion / mitochonwrion / mitochond4ion / mitochond5ion / mitochondtion / mitochondgion / mitochondfion / mitochonddion / mitochondeion / mitochond3ion / mitochondron / mitochondri9n / mitochondri0n / mitochondripn / mitochondriln / mitochondrikn / mitochondriin / mitochondri8n / mitochondriob / mitochondrioh / mitochondrioj / mitochondriom / mitochondrio /