Most living things are composed of different kinds of cells specialized to perform different functions. A liver cell, for example, does not have the same biochemical duties as a nerve cell. Yet every cell of an organism has the same set of genetic instructions, so how can different types of cells have such different structures and biochemical functions? Since biochemical function is determined largely by specific enzymes (proteins), different sets of genes must be turned on and off in the various cell types. This is how cells differentiate.
"The nuclear envelope surrounds the nucleus and creates and maintains a special environment inside it. The envelope consists of two nuclear membranes (inner and outer), nuclear pore complexes, and the lamina, a fibrous network. The nuclear membranes form an impermeable barrier. The outer membrane faces the cytoplasm and is part of the endoplasmic reticulum (ER). The inner membrane faces the chromosomes. Movement into and out of the nucleus occurs through pores (holes) where the inner and outer membranes are fused together. However, the pores are not empty; nuclear transport is controlled by nuclear pore complexes, each consisting of about a thousand proteins ("nucleoporins"). Each pore complex is large enough to accommodate the passage of ribosomal subunits, large protein-RNA (ribonucleic acid) complexes, which exit the nucleus after being assembled in the nucleolus." Found all info at:
https://www.youtube.com/watch?v=zJNej_UDBug Animals have all different types of cells for every different parts of there body...humans are made of animal cells.... Really useful link: http://www.cellsalive.com/cells/cell_model.htm
Red blood cells carry oxygen around the body, delivering it to organs that require this life-giving gas. These cells lack an assortment of pieces commonly associated with cells, including mitochondria and a nucleus. The absence of these organelles allows the cell to carry more oxygen around the body. Cells of this type are predominantly composed of hemoglobin, a chemical that allows for the uptake and carrying of oxygen.
The specialized cell types found in plant stems, leaves, roots, flowers, and fruits are organized into three tissue systems: the ground tissue system, the dermal tissue system, and the vascular tissue system. Each tissue system carries out a different general function: the vascular tissue system transports water and solutes over long distances within the plant, the dermal tissue system provides protection and gas exchange at the surface of the plant, and the ground tissue system provides cells that carry out photosynthesis, storage, and support. Each tissue system has many specialized cell types, and a few cell types are found in more than one tissue system. http://www.encyclopedia.com/doc/1G2-3408000064.html
Most living things are composed of different kinds of cells specialized to perform different functions. A liver cell, for example, does not have the same biochemical duties as a nerve cell. Yet every cell of an organism has the same set of genetic instructions, so how can different types of cells have such different structures and biochemical functions? Since biochemical function is determined largely by specific enzymes (proteins), different sets of genes must be turned on and off in the various cell types. This is how cells differentiate.
Red blood cells contain hemoglobin — a red, iron-rich protein that gives blood its red color. Hemoglobin enables red blood cells to carry oxygen from your lungs to all parts of your body and to carry carbon dioxide from other parts of the body to your lungs so that it can be exhaled.
There are two categories of bone cells. Osteoclasts are in the first category. They resorb (dissolve) the bone. The other category is the osteoblast family, which consists of osteoblasts that form bone, osteocytes that help maintain bone, and lining cells that cover the surface of the bone.
White blood cells are really important. It protects our lives everyday. Without it we wouldn't be able to live. http://www.slideshare.net/fatimaalzahraa/specialized-cells-biology
The cell I am doing is a neuron, the purpose of a neuron is to receive information, and then send it to other neurons, glands or muscles in the body. The neuron sends this information using electric signals. Neurons are the core of the entire nervous system, so they are extremely important.
http://www.biologyreference.com/Mo-Nu/Neuron.html I got all of my facts and information from this website.
14 comments:
Most living things are composed of different kinds of cells specialized to perform different functions. A liver cell, for example, does not have the same biochemical duties as a nerve cell. Yet every cell of an organism has the same set of genetic instructions, so how can different types of cells have such different structures and biochemical functions? Since biochemical function is determined largely by specific enzymes (proteins), different sets of genes must be turned on and off in the various cell types. This is how cells differentiate.
http://www.dnaftb.org/36/
"The nuclear envelope surrounds the nucleus and creates and maintains a special environment inside it. The envelope consists of two nuclear membranes (inner and outer), nuclear pore complexes, and the lamina, a fibrous network. The nuclear membranes form an impermeable barrier. The outer membrane faces the cytoplasm and is part of the endoplasmic reticulum (ER). The inner membrane faces the chromosomes. Movement into and out of the nucleus occurs through pores (holes) where the inner and outer membranes are fused together. However, the pores are not empty; nuclear transport is controlled by nuclear pore complexes, each consisting of about a thousand proteins ("nucleoporins"). Each pore complex is large enough to accommodate the passage of ribosomal subunits, large protein-RNA (ribonucleic acid) complexes, which exit the nucleus after being assembled in the nucleolus." Found all info at:
http://www.biologyreference.com/Mo-Nu/Nucleus.html
https://www.youtube.com/watch?v=zJNej_UDBug
Animals have all different types of cells for every different parts of there body...humans are made of animal cells....
Really useful link: http://www.cellsalive.com/cells/cell_model.htm
Red blood cells carry oxygen around the body, delivering it to organs that require this life-giving gas. These cells lack an assortment of pieces commonly associated with cells, including mitochondria and a nucleus. The absence of these organelles allows the cell to carry more oxygen around the body. Cells of this type are predominantly composed of hemoglobin, a chemical that allows for the uptake and carrying of oxygen.
http://www.ehow.com/list_7245490_specialized-cells-body.html
The specialized cell types found in plant stems, leaves, roots, flowers, and fruits are organized into three tissue systems: the ground tissue system, the dermal tissue system, and the vascular tissue system. Each tissue system carries out a different general function: the vascular tissue system transports water and solutes over long distances within the plant, the dermal tissue system provides protection and gas exchange at the surface of the plant, and the ground tissue system provides cells that carry out photosynthesis, storage, and support. Each tissue system has many specialized cell types, and a few cell types are found in more than one tissue system.
http://www.encyclopedia.com/doc/1G2-3408000064.html
Most living things are composed of different kinds of cells specialized to perform different functions. A liver cell, for example, does not have the same biochemical duties as a nerve cell. Yet every cell of an organism has the same set of genetic instructions, so how can different types of cells have such different structures and biochemical functions? Since biochemical function is determined largely by specific enzymes (proteins), different sets of genes must be turned on and off in the various cell types. This is how cells differentiate.
http://www.dnaftb.org/36/
Red blood cells contain hemoglobin — a red, iron-rich protein that gives blood its red color. Hemoglobin enables red blood cells to carry oxygen from your lungs to all parts of your body and to carry carbon dioxide from other parts of the body to your lungs so that it can be exhaled.
http://www.mayoclinic.org/diseases-conditions/anemia/basics/causes/con-20026209
There are two categories of bone cells. Osteoclasts are in the first category. They resorb (dissolve) the bone. The other category is the osteoblast family, which consists of osteoblasts that form bone, osteocytes that help maintain bone, and lining cells that cover the surface of the bone.
https://depts.washington.edu/bonebio/ASBMRed/cells.html
Muscle Cells are in muscle tissue and creates muscle.
Skin cells protect the inside of your body.
https://docs.google.com/a/bonnyeagle.org/presentation/d/1ip4rgijBK_hxcvz96_3xAOrYQpUD_f7x9N15B8p0RYc/edit#slide=id.g5e64e5033_04
White blood cells are really important. It protects our lives everyday. Without it we wouldn't be able to live.
http://www.slideshare.net/fatimaalzahraa/specialized-cells-biology
I forget the site i got this on.
There are two categories of bone cells. Osteoclasts are in the first category.
The cell I am doing is a neuron, the purpose of a neuron is to receive information, and then send it to other neurons, glands or muscles in the body. The neuron sends this information using electric signals. Neurons are the core of the entire nervous system, so they are extremely important.
http://www.biologyreference.com/Mo-Nu/Neuron.html
I got all of my facts and information from this website.
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