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Friday, March 26

  1. page Protein Synthesis edited ... 7.4.6 - As a molecule of mRNA is moved through a ribosome, codons are translated into the amin…
    ...
    7.4.6 - As a molecule of mRNA is moved through a ribosome, codons are translated into the amino acis, one by one, the process started by iniation through start codons. The interpreters are tRNA molecules, each type with a specific anitcondon at one end and a corresponding amino acid at the other end. A tRNA adds its amino acid cargo to a growing polypeptide chain when the anticodon bonds to a complementary codon on the mRNA (elongation) until termination occurs, ending elongation with a stop codon. Polysomes enable this process to occur very quickly by attaching a second ribosome on a strand of mRNA after the frst ribosome moves past he start codon; thus, a number of robosomes may trail along one mRNA.
    7.4.7 - Free ribosomes are suspended in the cytoplasm and mostly synthesize proteins the dissolve into the cytoplasm and function there. Bound ribosomes are attached to the cytoplasmic end of the ER or the nuclear envelope. Bound ribosomes make proteins of the endomembrane system (the nuclear envelope, ER, Golgi apparatus, lyosomes, vacuoles, and plasma membrane) as well as proteins secreted from the cell (insulin). The ribosomes themselves are identical and can swith their status from being free to bound.
    7.5.1 - Eukaryotic genes can contain exons and introns. An exon is a coding region of a eukaryotic gene. Exons, which are expressed, are seperated by introns. An intron is a noncoding, intervening squence ("useless") within a eukaryotic gene.
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    7:44 am
  2. page Protein Synthesis edited ... Black- Oma 7.4.5 - {http://www.dwm.ks.edu.tw/bio/activelearner/12/images/ch12c5.jpg} 7.4…
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    Black- Oma
    7.4.5 -
    {http://www.dwm.ks.edu.tw/bio/activelearner/12/images/ch12c5.jpg}
    7.4.6 - As a molecule of mRNA is moved through a ribosome, codons are translated into the amino acis, one by one, the process started by iniation through start codons. The interpreters are tRNA molecules, each type with a specific anitcondon at one end and a corresponding amino acid at the other end. A tRNA adds its amino acid cargo to a growing polypeptide chain when the anticodon bonds to a complementary codon on the mRNA (elongation) until termination occurs, ending elongation with a stop codon. Polysomes enable this process to occur very quickly by attaching a second ribosome on a strand of mRNA after the frst ribosome moves past he start codon; thus, a number of robosomes may trail along one mRNA.
    7.4.7 - Free ribosomes are suspended in the cytoplasm and mostly synthesize proteins the dissolve into the cytoplasm and function there. Bound ribosomes are attached to the cytoplasmic end of the ER or the nuclear envelope. Bound ribosomes make proteins of the endomembrane system (the nuclear envelope, ER, Golgi apparatus, lyosomes, vacuoles, and plasma membrane) as well as proteins secreted from the cell (insulin). The ribosomes themselves are identical and can swith their status from being free to bound.
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    7:41 am
  3. page Protein Synthesis edited ... 7.4.5 - 7.4.6 - As a molecule of mRNA is moved through a ribosome, codons are translated into…
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    7.4.5 -
    7.4.6 - As a molecule of mRNA is moved through a ribosome, codons are translated into the amino acis, one by one, the process started by iniation through start codons. The interpreters are tRNA molecules, each type with a specific anitcondon at one end and a corresponding amino acid at the other end. A tRNA adds its amino acid cargo to a growing polypeptide chain when the anticodon bonds to a complementary codon on the mRNA (elongation) until termination occurs, ending elongation with a stop codon. Polysomes enable this process to occur very quickly by attaching a second ribosome on a strand of mRNA after the frst ribosome moves past he start codon; thus, a number of robosomes may trail along one mRNA.
    7.4.7 - Free ribosomes are suspended in the cytoplasm and mostly synthesize proteins the dissolve into the cytoplasm and function there. Bound ribosomes are attached to the cytoplasmic end of the ER or the nuclear envelope. Bound ribosomes make proteins of the endomembrane system (the nuclear envelope, ER, Golgi apparatus, lyosomes, vacuoles, and plasma membrane) as well as proteins secreted from the cell (insulin). The ribosomes themselves are identical and can swith their status from being free to bound.
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    7:40 am
  4. page Protein Synthesis edited Red- Steven 7.4.1 ... Translation consists of four different stages initiation, elongation, …

    Red- Steven
    7.4.1
    ...
    Translation consists of four different stages initiation, elongation, translocation, and termination.
    7.4.4
    ...
    end than
    Black- Oma
    7.4.5 -
    7.4.6 - As a molecule of mRNA is moved through a ribosome, codons are translated into
    the amino acis, one by one, the process started by iniation through start codons. The interpreters are tRNA molecules, each type with a specific anitcondon at one end and a corresponding amino acid at the other end. A tRNA adds its amino acid cargo to a growing polypeptide chain when the anticodon bonds to a complementary codon on the mRNA (elongation) until termination occurs, ending elongation with a stop codon. Polysomes enable this process to occur very quickly by attaching a second ribosome on a strand of mRNA after the frst ribosome moves past he start codon; thus, a number of robosomes may trail along one mRNA.
    7.4.7 -

    (view changes)
    7:32 am

Wednesday, March 24

  1. page Protein Synthesis edited Type in Red- Steven 7.4.1 Every single amino acid has a tRNA activating enzyme that will allow …
    Type inRed- Steven
    7.4.1
    Every single amino acid has a tRNA activating enzyme that will allow
    the contenttRNA to bind with an mRNA. There is a three part activating site for the tRNA and they consist of your page here.the ATP, the amino acid, and the tRNA activating enzyme. The process consists of the activating enzyme attaching the amino acid to the tRNA and this is a process that uses ATP as its energy source.
    7.4.2
    A ribosome consists of two separate subunits which are the small and large subunits. A large subunit is made up of three different rRNA and a number of protein molecules. A ribosome will most likely have a mRNA binding site along with two tRNA binding sites.
    7.4.3
    Translation consists of four different stages initiation, elongation, translocation, and termination.
    7.4.4
    Translation occurs in a 5 to 3 direction because the start codon is nearer to the 5 end than the stop codon.

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    2:49 pm

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

Tuesday, March 16

  1. page Cell Replication edited ... Prophase: The chromosomes become visible and the nuclear membrane begins to break down, spindl…
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    Prophase: The chromosomes become visible and the nuclear membrane begins to break down, spindle fibers also start extending from both poles of the cell.
    Metaphase: Centrosomes are at opposite poles with spindles extending across cell. Duplicated chromosomes align with the spindle fibers on a middle line called the equator.
    ...
    the cell.
    Telophase: Nuclear membrane is formed around each new group of chromosomes and the cytoplasm divides (cytokinesis) forming two daughter cells.
    3.4.1- Explain DNA replication in terms of unwinding the double helix and separation of the strands by helicase, followed by formation of the new complementary strands of DNA polymerase.
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    6:29 pm
  2. page Cell Replication edited Cell Replication Oma-Black Sam-Jewish Steven-red ... - Blue 2.5.1 Mitosis is the divis…
    Cell Replication
    Oma-Black
    Sam-Jewish
    Steven-red
    ...
    - Blue
    2.5.1
    Mitosis is the division of a cell giving rise to two genetically identical daughter cells. It is seperated into five different phases which are interphase, prophase, metaphase, anaphase, and telophase. There is also the phase in which a cell spends most of its life in which is interphase. Interphase divided into three phases which are the G1 phase, S phase, and G2 phase. During the G1 phase the cell will increase in mass to prepare for cell division, there is also the little fact that the G means gap and the 1 mean first so the G1 phase is the first gap phase. The next phase in Interphase is the S phase which is the period in which the DNA synthesized, in most cells there is only a narrow window of time for DNA to be synthesized. The S in the S phase means synthesis. The third phase in Interphase is the G2 phase which is the final phase in Interphase before the beginning of prophase. In the G2 phase the cell will synthesize more proteins and will continue to grow in size, this phase is also known as the second gap phase. One of the last phases in cell divison is Cytokinesis which is the stage in which the cytoplasm of a cell will split resulting in two daughter cells.
    2.5.2
    Malignant tumors, also known as cancer are the result of uncontrolled cell division and this can occur in organ or tissue. Cells through some form of mutation lose their regulatory functions and begin to divide uncontrollably this can be caused by inheritance, certain infections, and diet and immunity weakness. The reason why it can be present in organs or tissues is because those things are made of cells and in reality tumors is just one big concentration of malfunctioning cells so that means that cancer can show up in any area of the body that is made up of cells such as tissues and organs.
    2.5.3
    Interphase is an active period in the life of a cell when man metabolic reactions occur. These include protein synthesis specifically ribosomes, DNA replication and an increase in the number of mitochondria and/or chloroplast. This is so the cell is capable of producing more ATP because interphase requires a lot of energy.
    2.5.4
    The Four Stages of Mitosis
    Prophase: The chromosomes become visible and the nuclear membrane begins to break down, spindle fibers also start extending from both poles of the cell.
    Metaphase: Centrosomes are at opposite poles with spindles extending across cell. Duplicated chromosomes align with the spindle fibers on a middle line called the equator.
    Anaphase: Duplicated sets of chromosomes separate and two identical groups move to opposite poles of the cell.
    Telophase: Nuclear membrane is formed around each new group of chromosomes and the cytoplasm divides (cytokinesis) forming two daughter cells.

    3.4.1- Explain DNA replication in terms of unwinding the double helix and separation of the strands by helicase, followed by formation of the new complementary strands of DNA polymerase.
    Stage 1: The DNA double helix is unwound and separated into strands by helicase breaking the hydrogen bonds holding the strands together and creating a replication bubble.
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    6:28 pm

Monday, March 15

  1. page Cell Replication edited Cell Replication Oma-Black Steven-red Kathryn - Blue ... 3.4.3- State that DNA replication i…
    Cell Replication
    Oma-Black
    Steven-red
    Kathryn - Blue
    ...
    3.4.3- State that DNA replication is semi-conservative.
    DNA replication copies DNA to produce new molecules with the same base sequence. It 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.
    2.5.5 -
    Explain how mitosis produces two genetically identical nucleus.
    The result of the process of mitosis is two nuclei. During S phase, each chromosome replicates (forms an exact copy of itself). These copies are called sister chromatids. These identical sister chromatids are separated during Anaphase, and are moved to each pole. When they are separated they are referred to as chromosomes. The result is two nuclei, identical to each other and to the original nucleus.
    2.2.6-
    State that growth, tissue repair, and asexual reproduction involve mitosis.
    During growth.
    When a tissue is damaged.
    Asexual reproduction when a single parent cell divides into two identical daughter cells.

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    7:09 pm

Sunday, March 14

  1. page Cell Replication edited Cell Replication Steven-red Kathryn - Blue 2.5.1 Mitosis is the division of a cell giving ris…
    Cell Replication
    Steven-red
    Kathryn - Blue
    2.5.1
    Mitosis is the division of a cell giving rise to two genetically identical daughter cells. It is seperated into five different phases which are interphase, prophase, metaphase, anaphase, and telophase. There is also the phase in which a cell spends most of its life in which is interphase. Interphase divided into three phases which are the G1 phase, S phase, and G2 phase. During the G1 phase the cell will increase in mass to prepare for cell division, there is also the little fact that the G means gap and the 1 mean first so the G1 phase is the first gap phase. The next phase in Interphase is the S phase which is the period in which the DNA synthesized, in most cells there is only a narrow window of time for DNA to be synthesized. The S in the S phase means synthesis. The third phase in Interphase is the G2 phase which is the final phase in Interphase before the beginning of prophase. In the G2 phase the cell will synthesize more proteins and will continue to grow in size, this phase is also known as the second gap phase. One of the last phases in cell divison is Cytokinesis which is the stage in which the cytoplasm of a cell will split resulting in two daughter cells.
    (view changes)
    7:14 pm

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