Monday, April 22, 2013

What are the exact locations for each of the following cell parts?Cell membrane, endoplasmic reticulum, chromosomes, golgi apparatus, mitochondria,...

Cell is the structural unit , functional and genetic of the organism.Cell fulfills the body's functions.


Cell consists of membrane, cytoplasm and nucleus.


Membrane defines the cell as individual unit, separating it from the environment. Besides the structural role of the cell membrane, it mediates and controls cell interactions with components  and the extracellular environment, ions and molecules.


Cytoplasm:It consists of an unstructured component (hyaloplasma) and a structural component (cytoplasm itself). It has specific organelle and common organelle (ribosomes, mitochondria, Golgi apparatus, lysosomes, Centrosome, Endoplasmatic reticulum ).


Ribosomes are free or attached to Endoplasmatic Reticulum. The have role in protein synthesis. They have spherical shape.


 Endoplasmatic Reticulum is a system that opens at one end of the cell membrane and at the other end to the nuclear membrane.


Mitochondria  and Chloroplasts are usually placed around the cell nucleus.


Lysosomes are small corpuscles in which there are over 40 digestive enzymes. They are in great numbers in animal cells and less in plant cells. They have a role in cellular digestion.


Golgi apparatus is located near the nucleus.


Centrosome is met on most cells, out of the neuron. It is located near the nucleus.


Vacuoles are surrounded by the membrane.

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