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Thursday, August 14

  1. page Reproduction Wiki - Made by Seniors edited ... 6.6.4: (SHANNON) Three roles of testosterone in males are: Develop prostrateresponsible for se…
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    6.6.4: (SHANNON) Three roles of testosterone in males are: Develop prostrateresponsible for sexual drive and excreting sperm with semen through the urethra, determine gender, and differentiation between male and female bodies during the prenatal stage (between 7 and 12 weeks of gestation)
    6.6.5: (SHANNON) In Vitro fertilization (IVF) is an infertility treatment different from artificial insemination (implantingthe sperm in the women’s womb and everything else is natural). During IVF the sperm fertilizes the egg out side of the body in a lab; the offspring of this type of treatment are often referred to as test tube babies. Once the embryo(s) form theyare placed in the uterus and the pregnancy goes on as if it were natural.
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    development. Once elongated and {http://cdncache-a.akamaihd.net/items/it/img/arrow-10x10.png} and formed with
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    through the คาสิโนออนไลน์ testes.
    {https://docs.google.com/File?id=ddsvzm4p_28gjsnqzds_b} height=427
    11.4.5 (ERIN)
    (view changes)

Wednesday, August 13

  1. page On Cell Respiration edited Cellular Cellular Respiration 3.7.1 ... dioxide and water. water Royal1688. {http://pd…

    CellularCellular Respiration
    3.7.1
    ...
    dioxide and water.water Royal1688.
    {http://pds1.egloos.com/pds/1/200603/14/54/c0066954_15241792.gif}
    Summary:
    Organic Compunds + Oxygen ---> Energy + Water + Carbon Dioxide
    ( e.g. glucose)------------------------(ATP + Heat)--------------------------------
    
    3.7.2 In cell respiration, glucose in the cytoplasm is broken down by glycolisis into a pyruvate, with a small yield of ATP. The video below explains and demonstrates the beginning stages of glycolisis.
    3.7.3 In the absence of oxygen (anaerobic respiration) the pyruvate remains in the cytoplasm and in humans is converted into lactate which is removed from the cell. In yeast, the pyruvate is converted into carbon dioxide and ethanol. In both cases, a small amount of ATP is produced.
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    The Image below shows the break down of glucose through anaerobic and aerobic respiration.
    {http://cbse.myindialist.com/wp-content/uploads/2010/06/clip_image00612.jpg}
    
    8.1.1 Oxidation involves the loss of electrons from an element, whereas reduction involves the gain of electrons and that oxidation frequently involves gaining oxygen or losing hydrogen, whereas reduction frequently involves losing oxygen or gaining hydrogen.
    Oxidation Reaction
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    Glycolysis occurs in the cytoplasm of cells. Two ATP molecules are used and 4 ATP molecules are produced. Therefore there is a net yield of two ATP molecules. Also, two NAD+ are converted into NADH + H+ during glycolysis.
    The diagram below demonstrates glycolisis.
    
     {http://www.ibguides.com/images/biology/biology_figure_8.1.1_glycolysis.png}
    {http://www.ibguides.com/images/biology/biology_figure_8.1.1_glycolysis.png}
    8.1.3 The diagram below shows the structure of a mitochondrion as seen in electron micrographs.
    {http://www.ibguides.com/images/biology/biology_figure_8.1.2_mitochondrion.png}
    
    8.1.4
    Aerobic Respiration
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    The Link Reaction
    Mitochondria in cells take up the pyruvate which is formed from glycolysis in the cytoplasm. Once the pyruvate is in the mitochondrion, enzymes within the matrix of the mitochondrion remove hydrogen and carbon dioxide from the pyruvate. This is called oxidation (removal of hydrogen or addition of oxygen) and decarboxylation (removal of carbon dioxide). Therefore, the process is called oxidative decarboxylation. The hydrogen removed is accepted by NAD+. The link reaction results in the formation of an acetyl group. This acetyl group is then accepted by CoA and forms acetyl CoA.
    BelowBelow is an
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    link reaction.
     {http://www.ibguides.com/images/biology/8.1.3_link_reaction.png}

    {http://www.ibguides.com/images/biology/8.1.3_link_reaction.png}

    The Krebs Cycle
    Step 1 - In the first stage of the Krebs cycle, the acetyl group from acetyl CoA is transferred to a four carbon compound. This forms a six carbon compound.
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    The Electron Transport Chain
    Inside the inner membrane of the mitochondria there is a chain of electron carriers. This chain is called the electron transport chain. Electrons from the oxidative reactions in the earlier stages of cell respiration pass along the chain. NADH donates two electrons to the first carrier in the chain. These two electrons pass along the chain and release energy from one carrier to the next. At three locations along the chain, enough energy is released to produce ATP via ATP synthase. ATP synthase is an enzyme that is also found in the inner mitochondrial membrane. FADH2 also donates electrons but at a later stage than NADH. Also, enough energy is released at only two locations along the chain by electrons from FADH2. The ATP production relies on energy release by oxidation and it is therefore called oxidative phosphorylation.
    BelowBelow is an
    {http://www.ibguides.com/images/biology/8.1.5_electron_transport_chain}
    The Role of Oxygen
    (view changes)
    2:36 am
  2. page BT Corn edited ... The definition of BT corn: Bt-corn is a type of genetically modified organism, termed GMO. A …
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    The definition of BT corn:
    Bt-corn is a type of genetically modified organism, termed GMO. A GMO is a plant or animal that has been genetically modified through the addition of a small amount of genetic material from other organisms through molecular techniques. BT is essentialy a type of corn that has an insectiside already in the genetic makeup of the corn but does not harm humans. While the FDA (U.S. Food and Drug Administration) regulates genetically modified foods, it considers Bt-corn to be nutritionally equivalent to traditional corn. The Bt delta endotoxin was selected because it is highly effective at controlling Lepidoptera larvae, caterpillars. ). For this reason, GMOs that have the Bt gene are compatible with biological control programs because they harm insect predators and parasitoids much less than broad-spectrum insecticides. The Bt endotoxin is considered safe for humans, other mammals, fish, birds, and the environment because of its selectivity. Bt has been available as a commercial microbial insecticide since the 1960s and is sold under many trade names. These products have an excellent safety record and can be used on many crops until the day of harvest.
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    is absolutley fine.fine Royal1688.
    {http://en.mercopress.com/data/cache/noticias/29925/0x0/bt-corn.jpg}
    genetically modified corn (bt corn)
    (view changes)
    2:35 am
  3. page Factor IX edited ... In 1997, the Scottish scientists that created Dolly (the famous sheep clone) announced that th…
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    In 1997, the Scottish scientists that created Dolly (the famous sheep clone) announced that they had created two transgenic sheep whose milk could help fight hemophilia (Associated Press, 1997). This is because the milk contains Factor IX, which can be injected into the blood system to stop the effects of Hemophilia B (Haemophilia B, 2011).
    Cool, but what is Factor IX?
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    network of Royal1688 fibrin which,
    {http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/clotting_cascade.png}
    As can be seen above, the Christmas Factor is also involved in a couple of positive feedback loops. The first of which is when TF 7 (a merge of Tissue Factor and Factor VII) activates Factor IX which merges with Factor VIII and creates more Factor X (Kimball, 2011). And the second is simply when Factor XI, creates more Factor IX which again increases the amount of Factor 10 (Kimball, 2011).
    (view changes)
    2:35 am
  4. page Herbicide Resistance in Crops edited For Sarah's Sure Shots ... in Crop Plants Plants Herbicide resistance- The inherited abilit…
    For Sarah's Sure Shots
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    in Crop PlantsPlants
    Herbicide resistance- The inherited ability of a plant to survive and reproduce after being exposed to an amount of herbicide that would normally be lethal to the wild type. Herbicide binds to specific areas in plants, mainly enzymes and proteins, and this binding disrupts the normal functioning of the plant. This results in death of the plant.
    Description of the problem it is intended to solve:
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    of a Royal1688 beet field
    {http://www.gmo-compass.org/data/imagescontent/agri_biotechnology/146_effect_of_herbicides_zoom.jpg}
    Different Points of View
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    weeds, or resort to other, {http://cdncache-a.akamaihd.net/items/it/img/arrow-10x10.png} other, more toxic
    Works Cited
    Deese, Steven Daniel. “Economic Analysis: Weeding Techniques for Organic Farms.” digitalcommons.calpoly.edu. N.p., n.d. Web. 26 Jan. 2011. <http://digitalcommons.calpoly.edu/‌cgi/‌viewcontent.cgi?article=1016&context=agbsp>.
    (view changes)
    2:34 am
  5. page Golden Rice edited ... that contain would ordinarily contain the carotene needed to produce vitamin-a. Though the bio…
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    that contain would ordinarily contain the carotene needed to produce vitamin-a. Though the biotechnology seems like it would be beneficial for the body
    there has been much discussion on whether or not the synthetic pills actually have positive effects on consumers. According to satisfied-mind.com
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    beta-carotene actually Royal1688 increases the
    {webkit-fake-url://A336F913-5D86-434D-A2BF-D4992ECF20A3/imgname--longterm_beta_carotene_supplements_for_less_cognitive_decline_in_men---50226711--26498609.jpg} imgname--longterm_beta_carotene_supplements_for_less_cognitive_decline_in_men---50226711--26498609.jpg
    Bibliography:
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    Adam Weisse comment on this POV- THis may sound cold, but should the risks of this GMO be fully explored before it is used too much? It might be able to prevent this deficiency, but is it worth the potential risk to the environment? If this product will poison teh water supply or something like that, it should be made known. The environment is too important to risk for the sake of finding an instantaneous cure for this problem of deficiency.
    Oma Cecil
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    this food?
    http://www.livescience.com/environment/080423-food-shortage.html
    POV
    (view changes)
    2:32 am
  6. page Salt Tolerance in Tomato Plants edited SALT TOLERANCE IN TOMATO ... And because Royal1688 their salt-storing The diagram below shows…
    SALT TOLERANCE IN TOMATO
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    And because Royal1688 their salt-storing
    The diagram below shows how the genetically modified tomato relieves the "stress" caused by a high amounts of salinity levels ( GMO Compass).
    {file:///C:/Users/Tamana/AppData/Local/Temp/moz-screenshot-5.png}
    (view changes)
    2:31 am

Saturday, June 21

  1. page Salt Tolerance in Tomato Plants edited ... <http://www.dnr.nsw.gov.au/salinity/science/pdf/abjnielsen_brock_et_al.pdf>. Full Inter…
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    <http://www.dnr.nsw.gov.au/salinity/science/pdf/abjnielsen_brock_et_al.pdf>.
    Full Interview: http://www.monsanto.co.uk/news/ukshowlib.phtml?uid=5556
    Buy youtube likes
    Brian Tokar (Institute for Social Ecology) The Edmonds Institute (Revised version, 2001). 28 Jan. 2011. <http://www.saynotogmos.org/molecular_pharming.htm>
    (view changes)
  2. page neurobio edited ... Vibrating liquid (from the round window) begins the process by bending hairs in your ear thus …
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    Vibrating liquid (from the round window) begins the process by bending hairs in your ear thus converting sound energy to electrical energy being sent to the brain causing “hearing”
    E4: Neurotransmitters and Synapses
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    postsynaptic transmission. - buy youtube likes
    Some presynaptic neurons are designed to prevent (or inhibit) excitatory neurons from binding with the receptors on the postsynaptic membrane. This is known as postsynaptic inhibition or direct inhibition. A common example of an inhibitory neurotransmitter is GABA (Gamma Amino Butyric Acid) which leads to hyperpolarization. Hyperpolarization is a change in a cell's membrane potential that makes it more negative. It is the opposite of a depolarization. Hyperpolarization is often caused by efflux of K+ through K+ channels, or influx of Cl– through Cl– channels. Some presynaptic neurons are designed to excite postsynaptic transmissions. The excitatory neurons often lead to depolarization, an electrical state in an excitable cell whereby the inside of the cell is made less negative relative to the outside than at the resting membrane potential. Depolarization is often caused by influx of cations, e.g. Na+ through Na+ channels, or by influx of Ca2+ through Ca2+ channels. - buy facebook likes
    E.4.2 – Explain how decision-making in the CNS can result from the interaction between the activities of excitatory and inhibitory presynaptic neurons at synapses.
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Friday, June 20

  1. page neurobio edited ... E4: Neurotransmitters and Synapses E.4.1 – State that some presynaptic neurons excite postsy…
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    E4: Neurotransmitters and Synapses
    E.4.1 – State that some presynaptic neurons excite postsynaptic transmission and others inhibit postsynaptic transmission.
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    Ca2+ channels. - buy facebook likes
    E.4.2 – Explain how decision-making in the CNS can result from the interaction between the activities of excitatory and inhibitory presynaptic neurons at synapses.
    A neuron is on the receiving end of many excitatory and inhibitory stimuli. The neuron sums up the signals. If the sum of the signals is inhibitory then the axon does not fire. If the sum of the signals is excitatory, then the axon fires. This is the interaction that takes place between the activities of the excitatory and inhibitory neurons at the synapses. The summation of the messages is the way that decisions are made by the CNS.
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