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Monday, March 22

  1. page Protein Synthesis edited Type in the content of your page here.
    Type in the content of your page here.
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    4:33 pm

Sunday, March 14

  1. page Cell Replication edited Type 3.4.2- Explain the significance of complementary base pairing in the content conservation…
    Type3.4.2- Explain the significance of complementary base pairing in the contentconservation of your page here.the base sequence of DNA.
    Complementary base pairing is significant because you have to make sure that the old base structure is preserved. DNA has to be an "exact copy" of the template. If this is messed up, mutaions can result.
    3.4.3- State that DNA replication is semi-conservative.
    DNA replication is semi-conservative because each new molecule formed by replication uses one new strand and one old strand which is conserved from the parent DNA molecule.
    {semiconservative.jpg}

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  2. page Cell Replication edited Type in the content of your page here.
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Sunday, January 24

  1. page Cells edited ... two roles of extracellular components. the making and developing of plant cell wall and glyco…
    ...
    two roles of extracellular components.
    the making and developing of plant cell wall and glycoproteins
    Structure of memebranesmembranes
    {http://micro.magnet.fsu.edu/cells/plasmamembrane/images/plasmamembranefigure1.jpg}
    Hydrophilic molecules and hydrophobic molecules form a double layer with the hydrophilic heads on the outside of the membrane while the hydrophobic tails are in the inside of the membrane. The heads are attracted to the water around making the membrane stable.
    Membrane proteins functions:
    pumps for active transport
    has hormone binding sites
    are electron carriers
    have the channels for passive transport
    enzymes catalyze reactions
    Diffusion is the movement of particles between different concentration gradients across the protein membrane
    Osmosis the movement of water across the permeable membrane; passive transport

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    5:44 pm

Friday, January 22

Thursday, January 21

  1. page Cells edited ... A cell wall composed of cellulose and hemicellulose, pectin and in many cases lignin, and secr…
    ...
    A cell wall composed of cellulose and hemicellulose, pectin and in many cases lignin, and secreted by the protoplast on the outside of the cell membrane. This contrasts with the cell walls of fungi (which are made of chitin), and of bacteria, which are made of peptidoglycan.
    Unlike animal cells, plant cells are stationary.
    two roles of extracellular components.
    the making and developing of plant cell wall and glycoproteins

    Structure of memebranes
    {http://micro.magnet.fsu.edu/cells/plasmamembrane/images/plasmamembranefigure1.jpg}
    (view changes)
    5:42 pm
  2. page Cells edited {http://www.ucmp.berkeley.edu/bacteria/bactdiag.gif} For For Mad House The outline of the cell…
    {http://www.ucmp.berkeley.edu/bacteria/bactdiag.gif} ForFor Mad House
    The outline of the cell theory states that:
    All organisms are composed of one or more cells.
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    5:39 pm
  3. page Cells edited For {http://www.ucmp.berkeley.edu/bacteria/bactdiag.gif} For Mad House The outline of the cell…
    For {http://www.ucmp.berkeley.edu/bacteria/bactdiag.gif} For Mad House
    The outline of the cell theory states that:
    All organisms are composed of one or more cells.
    ...
    Calculating the linear magnification of drawings and the actual size of specimens in images of known magnification:
    Magnification = Measured Size of Diagram ÷ Actual Size of Object
    Chris Bland work
    Diagram of liver cell
    {http://content.answers.com/main/content/img/McGrawHill/Encyclopedia/images/CE116800FG0010.gif}
    Diagram of e.coli
    {http://www.ecoliblog.com/cell-ecoli.gif}
    Eukaryotic vs. Prokaryotic cells
    The prokaryotes are a group of organisms that lack a cell nucleus, or any other membrane-bound organelles.
    Most are unicellular, but a few prokaryotes such as myxobacteria have multicellular stages in their life cycles.[[#cite_note-0|[]]
    A distinction between prokaryotes and eukaryotes (is that eukaryotes do have "true" nuclei containing their DNA, whereas the genetic material in prokaryotes is not membrane-bound. Eukaryotic organisms may be unicellular, as in amoebae, or multicellular, as in plants and humans. The difference between the structure of prokaryotes and eukaryotes is so great that it is sometimes considered to be the most important distinction among groups of organisms
    Three differences between plant and animal cells
    three things that are in plant cells but not animal cells
    A large central vacuole, a water-filled volume enclosed by a membrane known as the tonoplastmaintains the cell's turgor, controls movement of molecules between the cytosol and sap, stores useful material and digests waste proteins and organelles.
    A cell wall composed of cellulose and hemicellulose, pectin and in many cases lignin, and secreted by the protoplast on the outside of the cell membrane. This contrasts with the cell walls of fungi (which are made of chitin), and of bacteria, which are made of peptidoglycan.
    Unlike animal cells, plant cells are stationary.
    Structure of memebranes
    {http://micro.magnet.fsu.edu/cells/plasmamembrane/images/plasmamembranefigure1.jpg}

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    5:39 pm

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