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Cell Biology


  • I found the membrane of the nucleus to be interesting. I always thought the nucleus membrane was impermeable, so finding out there were pores was interesting.
  • The mRNA doesn't leave the nucleus until it has matured, and that it is extremely unstable, and as a result is one of the main reasons for There being a cell nucleus in eukaryotes.

electron Microscopy

  • Link to home page of the confocal microscope (UNSW) [1]
  • Link to the home page of the Electron microscope unit (UNSW) [2]

Cell exocytosis

  • Proteins are made in the lumen and are only allowed into the cytoplasm with a membrane. I'm not sure what the proper reason for this is, Is it to protect the protein, or to prevent the poteins from makig chages to the cytoplasm.
  • I found the golgi apparatus pretty interesting. I did not know that each of the compartments were different sizes and that they do not touch.

cellular energy production

  • There are 3 main types of energy production in a cell.
    • Phosphocreatine - resynthesizes and resupplies callular ATP
    • Aerobic metabolism - requires oxygen to drive the chemical reactions
    • Glycolosis - this is an anaerobic system that uses glucose and glycogen
  • Mitochondria and energy production are found in the area of the cell where the most energy is required

Cell adhesion

  • Cell Adhesion Molecule (CAM)
    • L-CAM is a liver cell adhesion molecule
    • NG-CAM is a Neuron-Glia cell adhesion molecule
    • I-CAM is an Intercellular cell adhesion molecule

Lecture 10 Homework

  • strata spinosum

Methods of Confocal Microscopy

  • the two methods used in confocal microscopy are Spinning and Laser

S Phase in cell division

  • S Phase stands for Synthesis Phase

individual assignment topic


Seperase is a protein that is important to cell division. The sister chromatids are held together by a protein called Cohesin. Seperase as its name suggests is responsible for catalysing the Cohesin, causing it to dissolve allowing the nitotic spindle to pull the sister chromatids apart, thus allowing cell division to continue to create 2 identical cell, or haploid cells as a result of meisosis.