One of the following is killed by the extrinsic pathway of apoptosis. Identify it
Cells with damaged DNA.
Virus infected cells.
Developing neurons which fail to make profitable connections.
Irradiated cells.
Answers
Answer:
Explanation:
Virus infected cells. is the correct answer please mark me as the brilliant
Answer:
Cells with damaged DNA.
DNA damage can affect normal cell replicative function and impact rates of apoptosis(programmed cell death, often referred to as 'cellular senescence). Alternatively, damage to genetic material can result in impaired cellular function, cell loss, or the transformation of healthy cells to cancers.
Virus-infected cells.
When the virus is inside the cell, it will open up so that its DNA and RNA will come out and go straight to the nucleus. They will enter a molecule, which is like a factory, and make copies of the virus.
Developing neurons that fail to make profitable connections.
Neuronal death in epileptogenic BDI can be caused by direct mechanical forces to the brain (like TBI), as well as by vascular, cellular, or molecular alterations that result in acute and delayed neuronal death or injury.
Irradiated cells.
Ionizing radiation exerts biological effects, such as cell death and chromosomal aberration due to the direct radiation of the cells.
Explanation:
Cells with damaged DNA.
Exogenous DNA damage, on the other hand, occurs when environmental, physical, and chemical agents damage the DNA. Examples include UV and ionizing radiation, alkylating agents, and crosslinking agents. Endogenous and environmental agents can cause DNA damage in cells (1, 10, 18). The endogenous agents, ROS and reactive nitrogen species (RNS), are generated by cellular metabolism and other factors are temperature, errors in DNA replication and repair, and methylation.
Virus-infected cells.
Organisms can spread—or be transmitted—by several routes. Contact: Some diseases spread via direct contact with infected skin, mucous membranes, or body fluids. Diseases transmitted this way include cold sores (herpes simplex virus type 1) and sexually transmitted diseases such as AIDS. Viruses are tiny infectious agents that rely on living cells to multiply. They may use an animal, plant, or bacteria host to survive and reproduce.
Developing neurons that fail to make profitable connections.
Neuronal death is probably regulated by competition for trophic substances released by the target tissue. An example of this is in the innervation of skeletal muscle fibers. Initially, a motoneurone connects with several muscle fibers by sending out motor axons, usually several to one muscle fiber. As development proceeds, the terminal branches of most of the motor axons retract so that one motoneurone comes to dominate a given muscle fiber completely. The process of retraction and cell loss appears to be general in the development of the nervous system, allowing modification of the anatomical organization of synaptic connections.
Irradiated cells.
Radiation and electrons bombarded by radiation move haphazardly inside the cell, resulting in damage to the various molecules forming the cell. Chromosomal DNA inside the cell nucleus can also be damaged. Cancer cells multiply faster than normal cells in the body. Because radiation is most harmful to quickly growing cells, radiation therapy damages cancer cells more than normal cells. This prevents the cancer cells from growing and dividing and leads to cell death.