Cell differentiation and specialization Flashcards
Organism
single living thing
Organ system
organs that function together to carry out specific duties
Organ
organized group of tissues that perform a specific function
Tissue
organized groups of cells that function together to perform specialized tasks
Specialized cell
cell developed w a particular function
Stem cells
an undifferentiated cell that can divide to form specialized cells based on which genes are being expressed
Cellular differentiation
the process by which a cell becomes specialized to perform a specific function
Totipotent stem cells
formed shortly after fertilization of an egg cell by a sperm cell. They can become all of the cells of the human body, as well as the cells of the embryo and developing fetus. (Cell can form embryo or placenta)
Pluripotent stem cells
can give rise to all of the cell types that form the human body, but are not as versatile as totipotent cells as they cannot form the placenta. (only form embryo)
Types of pluripotent
Embryonic ESCs- collected from early stage embryos
Induced pluripotent iPS- made from adult cells, created from skin or blood cells
Multipotent stem cells
- Hematopoietic stem cells (HSCs) usually become cells of the blood and immune system
- Mesenchymal stem cells (MSCs) found in bone marrow and fat, and other tissues. These cells tend to turn into bone, fat, muscle and cartilage cells.
Neural stem cells
found in the brain and differentiate into neurons, glia, and other similar cells.