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In cell Biology, a mitochondrion (plural mitochondria) is a membrane-enclosed organelle found in most eukaryotic cells.[1] These organelles range from 0.5 to 1.0 micrometer (μm) in diameter. Mitochondria are sometimes described as "cellular power plants" because they generate most of the cell's supply of adenosine triphosphate (ATP), used as a source of chemical energy.[2] In addition to supplying cellular energy, mitochondria are involved in a range of other processes, such as signaling, cellular differentiation, cell death, as well as the control of the cell cycle and cell growth.[3] Mitochondria have been implicated in several human diseases, including mitochondrial disorders[4] and cardiac dysfunction,[5] and may play a role in the aging process. The word mitochondrion comes from the Greek μίτος mitos, thread, + χονδρίονchondrion, granule.

Several characteristics make mitochondria unique. The number of mitochondria in a cell varies widely by organism and tissue type. Many cells have only a single mitochondrion, whereas others can contain several thousand mitochondria.[6][7] The organelle is composed of compartments that carry out specialized functions. These compartments or regions include the outer membrane, the intermembrane space, the inner membrane, and the cristae and matrix. Mitochondrial proteins vary depending on the tissue and the species. In humans, 615 distinct types of proteins have been identified from cardiac mitochondria,[8] whereas in Murinae (rats), 940 proteins encoded by distinct genes have been reported.[9] The mitochondrial proteome is thought to be dynamically regulated.[10] Although most of a cell's DNA is contained in the cell nucleus, the mitochondrion has its own independent genome. Further, its DNA shows substantial similarity to bacterial genomes.[11]

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Related Questions

Why di muscle cells have many mitochondria?

Muscle requires a lot of ATP , mitochondria produces ATP


What kind of animal cells might have many mitochondria?

Muscle cells work hard and require a lot of energy so they contain many many mitochondria.


Why muscle cells have more mitochondria than other kinds of eukaryotic cells have?

mitochondria supply the energy to the cells. Muscle cells require a lot of energy for contraction. Therefore muscle cells need a lot of mitochondria.


Why do same cells contain many mitochondria?

Skeletal muscle cells, for instance, contain many mitochondria because the energy consumed in the contraction of the sarcomere is enormous. Skin cells, for instance, contain much less mitochondria as the cellular work the need to do is minimal compared to skeletal muscle cells.


What kind of cells might have a high number of mitochondria?

Cells with a high energy demand, such as muscle cells and liver cells, typically have a high number of mitochondria. Mitochondria produce energy in the form of ATP through cellular respiration, so cells that require a lot of energy to function efficiently will have more mitochondria.


Which of your cells would you expect to have more mitochondriz your muscle cells or your bone cells?

Muscle cells are very active relatively to the skin cell. So it has more mitochondria


Do muscle cells have more or less mitochondria than other animal cells?

Muscle cells typically have more mitochondria compared to other animal cells. This is because mitochondria are responsible for producing energy in the form of ATP, which is essential for muscle contraction and movement. The abundance of mitochondria in muscle cells supports their high energy demands.


What are some kind of animal cells that might have a lot of mitochondria present?

Mitochondria are the cells' power sources. They are organelles that act like a digestive system that takes in nutrients, breaks them down, and creates energy for the cell. All living (plant or animal) cells have mitochondria. Muscle cells have many mitochondria (typically on the order of 1000 to 2000) [Mitochondria]. The need of mitochondria for muscle cells is to respond quickly to the large amount of need for producing energy. Read more questions from WISTEME through


Which type of cells have the highest concentration of mitochondria?

Muscle cells have the highest concentration of mitochondria.


What cell contains most mitochondria?

Muscle cells, such as those found in the heart or skeletal muscles, contain the most mitochondria as they require a lot of energy to function. Mitochondria are the powerhouse of the cell and are responsible for producing ATP, which is essential for muscle contraction.


What type of cell would you find lots of mitochondria?

Muscle cells often contain many mitochondria because muscle cells often require a lot of energy, and since mitochondria create ATP which is the form of energy used by our bodies, it is essential to have many of them in cells that constantly require more energy than, as an example, skin cells.


Do muscle cells have mitochondria?

yes