CELLS
ANIMAL NERVE CELLS
All animal cells are multicellular. They are eukaryotic cells. Animal cells are surrounded by plasma membrane and it contains the nucleus and organelles that are membrane bound. The basic function of the nerve cell is to deliver a message to the next nerve cell in order to send information across the body of the animal.
ANIMAL NERVE CELLS
All animal cells are multicellular. They are eukaryotic cells. Animal cells are surrounded by plasma membrane and it contains the nucleus and organelles that are membrane bound. The basic function of the nerve cell is to deliver a message to the next nerve cell in order to send information across the body of the animal.
HOW DO CELLS COMMUNICATE WITH EACH OTHER
Cells communicate with each other via small, signaling molecules that are produced by specific cells and received by target cells. This communication system operates on both a local and long-distance level. Cells communicate by vrious types of signaling that allow chemicals to travel to target sites in order to elicit a response. Endocrine signaling occurs between distant cells and is mediated by hormones released from specific endocrine cells that travel to target cells, producing a slower, long-lasting response.
An example of cells communicating
Cells communicate with each other via small, signaling molecules that are produced by specific cells and received by target cells. This communication system operates on both a local and long-distance level. Cells communicate by vrious types of signaling that allow chemicals to travel to target sites in order to elicit a response. Endocrine signaling occurs between distant cells and is mediated by hormones released from specific endocrine cells that travel to target cells, producing a slower, long-lasting response.
An example of cells communicating
Specialized cells are cells that have gone on to specialize in being in a certain part of the body, such as a skin cell. These cells generally do not replicate and simply die after their life cycle is complete. Most of the human body's cells are specialized cells, such as muscle, skin and nerve cells.
In multicellular organisms, specialized cells are coded to be part of a special function in the body. This is also referred to as "cellular differentiation," meaning that many cells perform many different tasks and are specific to that task alone. Groups of specialized cells cooperate to form a tissue, such as a muscle. Different tissues are then grouped together to form larger functional units called organs. These all have a distinct structure and set of functions that serve the organism.
AN example of a spEcialised cell;
What causes cells to become SPECIALISED? BIBLIOGRAPHYhttp://www.saburchill.com/chapters/chap0107.html
http://www.siumed.edu/~dking2/erg/gicells.htm
http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa_pre_2011/cells/cells2.shtml
http://www.biologyjunction.com/cell_functions.htm
http://www.uic.edu/classes/bios/bios100/lecturesf04am/lect06.htm
http://biology.unm.edu/ccouncil/Biology_124/Summaries/Cell.html
http://www.siumed.edu/~dking2/erg/gicells.htm
http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa_pre_2011/cells/cells2.shtml
http://www.biologyjunction.com/cell_functions.htm
http://www.uic.edu/classes/bios/bios100/lecturesf04am/lect06.htm
http://biology.unm.edu/ccouncil/Biology_124/Summaries/Cell.html