In the last decade of the twentieth century, it was discovered that the mitochondria from cancer cells are often resistant against the induction of mitochondrial outer membrane permeabilization (MOMP), a process which mediates the intrinsic pathway of apoptosis (Zamzami et al., 1998; Green and Kroemer, 2004).
http://www.nature.com/onc/journal/v25/n34/full/1209589a.html
Mitochondria are unusual organelles. They act as the power plants of the cell, are surrounded by two membranes, and have their own genome. They also divide independently of the cell in which they reside, meaning mitochondrial replication is not coupled to cell division.
http://www.nature.com/scitable/topicpage/mitochondria-14053590
SUMMARY. Mitochondria are large organelles found in the cytoplasm of all plant and animal cells. They are though to have originated as a result of a cell engulfing a small bacterium and then the two units living in a symbiotic relationship. The mitochondria reproduce within the host cell.
http://bscb.org/learning-resources/softcell-e-learning/mitochondrion-much-more-than-an-energy-converter/
1 One suggestion in favor of this hypothesis is provided by the observation that mitochondrial DNA mutations may cause, through unknown mechanisms, a reduction of spontaneous or chemotherapy-induced apoptosis in cancer cells (Ohta, 2006).
http://www.nature.com/onc/journal/v25/n34/full/1209589a.html
The mitochondrion (plural mitochondria) is a double membrane-bound organelle found in most eukaryotic cells. The word mitochondrion comes from the Greek μίτος, mitos, i.e. thread, and χονδρίον, chondrion, i.e. granule or grain-like. Mitochondria range from 0.5 to 1.0 μm in diameter.
https://en.wikipedia.org/wiki/Mitochondrion
In both instances, encouraging pre-clinical results have been obtained. As a first hint that mitochondria may play an important role in cancer cell biology, it was discovered in the 1920s that cancer cells constitutively upregulate glucose metabolism, even in the presence of abundant oxygen (Warburg, 1930).
http://www.nature.com/onc/journal/v25/n34/full/1209589a.html
Figure Detail. Logically, mitochondria multiply when a the energy needs of a cell increase. Therefore, power-hungry cells have more mitochondria than cells with lower energy needs. For example, repeatedly stimulating a muscle cell will spur the production of more mitochondria in that cell, to keep up with energy demand. Mitochondria cannot be made from scratch because they need both mitochondrial and nuclear gene products. These organelles replicate by dividing in two, using a process similar to the simple, asexual form of cell division employed by bacteria. Video microscopy shows that mitochondria are incredibly dynamic.
http://www.nature.com/scitable/topicpage/mitochondria-14053590
Several characteristics make mitochondria unique. The number of mitochondria in a cell can vary widely by organism, tissue, and cell type. For instance, red blood cells have no mitochondria, whereas liver cells can have more than 2000. 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.
https://en.wikipedia.org/wiki/Mitochondrion
1 Cancer cells accumulate defects in the mitochondrial genome, leading to deficient mitochondrial respiration and ATP generation (Brandon et al., 2006; Chatterjee et al., 2006). 2  In some cases, mitochondrial germline mutations have been shown to provide a genetic predisposition to cancer development (Brandon et al., 2006).
http://www.nature.com/onc/journal/v25/n34/full/1209589a.html
Mitochondria are virtually cells within a cell and each one has its own DNA. Mitochondrial DNA is only inherited through the maternal line. Any mitochondrial DNA contributed by the father is actively destroyed by programmed cell death after a sperm fuses with an egg.
http://bscb.org/learning-resources/softcell-e-learning/mitochondrion-much-more-than-an-energy-converter/
which cell has a mitochondria
All plant and animal cells are having a mitochondria. All plant and animal cells have mitochondria.  