Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
DESCRIBE THE STRUCTURAL COMPARTMENTATION OF MAMMALIAN CELLS AND THE DIFFERING FUNCTIONS OF THESE COMPARTMENTS
Member rating: No Rating | Words: | Submitted: Fri Jan 28 2005
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
DESCRIBE THE STRUCTURAL COMPARTMENTATION OF MAMMALIAN CELLS AND THE DIFFERING FUNCTIONS OF THESE COMPARTMENTS Mammalian cells are eukaryotic and therefore have organelles that are common to all eukaryotic cells. Each of these organelles has a basic function to carry out in the cell. The nucleus, usually the largest organelle in animal cells, is separated from the cytoplasm in the cell by two nuclear membranes comprised of phospholipid bilayers and many different proteins. The inner membrane is the one which defines the nucleus' shape. At certain points around the nuclear membranes, the two membranes join to form nuclear pores, which are important for the movement of material in and out of the nucleus that could otherwise not pass through the phospholipid bilayer around the structure. Examples of these include lengths of tRNA or mRNA which are too large to pass through the membrane but are necessary for functions elsewhere in the cell. The nucleus...
To see the full version of this document, and 145,348 others
