Talk:3219050

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Revision as of 19:06, 6 April 2009 by S8600021 (talk | contribs)

-- Mark Hill 18:06, 6 April 2009 (EST) Yes, this is probably the best place to keep homework.

--Mark Hill 09:40, 3 April 2009 (EST)--Mark Hill 09:40, 3 April 2009 (EST) Correct definitions for CAM terms, lots of science today uses acronyms (because the terms or gene names are very long), but what this means is that several acronyms can mean different things to different people.

--Mark Hill 14:36, 19 March 2009 (EST)Note the double-membrane is also called the "nuclear envelope"

   * Nuclear pores exist for the import and export of mRNA and proteins.

This second point is not clearly stated. It would have been better to state:

* Nuclear pores exist mainly for the import of proteins and export of mRNA.

Indicating that you understood the direction of shipment.

  • The nuclear membrane's structure is maintained by underlying lamins.

Correct, these lamins form the nuclear cytoskeleton.

You have now created your individual project page.

Information

  • This is just a number.
  • This is a piece of text.
    • This is a subheading.

Nucleic Acids

There are 2 types of nucleic acid:

  1. DNA and
  2. RNA
Column1 Column 2 Column 3
Row 1 stuff stuff again
Row 2 things things again


The Nucleus

The nucleus is an organelle only seen in eukaryotic cells. It has within it genetic material in the form of DNA.

The nucleus also has the following properties:

  • It is surrounded by a double-membrane.
  • Nuclear pores exist for the import and export of mRNA and proteins.
  • The nuclear membrane's structure is maintained by underlying lamins.

Exocytosis

I found most of the content interesting but it was a little difficult to understand how the mRNA knew to move to the ribosomes in the rough ER. This has been cleared up though!

Mitochondria

Last lecture I learnt that the processes that occured in the mitochondria which were useful to the cell were the TCA cycle (generated ATP for the cell's metabolic processes) and apoptosis.

Pyruvate, fatty acids and oxygen were needed as substrates for the TCA cycle. End products were ATP and carbon dioxide.

Features of apoptosis in the mitochondria are the release of cytochrome C and also the appearance of 'vesicular mitochondria'.

Cell Junctions - CAMs

Type of CAM Full Name
N-CAM Neural Cell Adhesion Molecule
Ng-CAM Neural Glial Cell Adhesion Molecule
L-CAM Liver Cell Adhesion Molecule
I-CAM Intercellular Cell Adhesion Molecule