E.R., The golgi Body And Vesicles
Thousands of structures with membranes crowd the eukaryotic cytoplasm, the most numerous being called the endoplasmic reticulum (ER), a dense network of membranes running through the cytoplasm of every cell and enclosing a network of interconnected tubes (cisternae), which form a connecting channel throughout the cytoplasm. ‘Endoplasmic’ means ‘inside the cytoplasm’, and ‘reticulum’ means ‘network’. The E.R. can make up a significant percentage of the overall volume of the cell. There are two types of ER: rough ER (RER), so-called because its cytoplasmic face is dotted with ribosomes, and smooth ER (SER), which is devoid of ribosomes. The RER is more extensive than SER and acts as a protein producer and storage vessel. Amino acid chains, freshly synthesised by the ribosomes, slide through tiny holes in its membrane into the cisternae, where they remain until they are sent elsewhere in the cytoplasm, or to the cell edge where they are secreted or incorporated into the cell membrane. The membranes of the ER usually form a tightly packed and flattened sac-like structures, that form inter-connected compartments within the cytoplasm. The internal space formed by the membrane sheets is
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Some common words found in the essay are:
Camillo Golgi, ER SER, Proteins RER, Vesicles Thousands, Smooth ER, golgi apparatus, ER RER, RER Likewise, rough er, Body Golgi, cell membrane, Rough ER, smooth er, er lumen, cell surface membrane, vesicle fuses, cytoplasm cell, cell surface, inside cell, sacs rough er, proteins lipids,
Approximate Word count = 1219
Approximate Pages = 5 (250 words per page double spaced)
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