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The cell cycle pt 1

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The cell cycle Actively dividing eukaryote cells pass through a series of stages known collectively as the cell cycle: two gap phases (G1 and G2); an S (for synthesis) phase, in which the genetic material is duplicated; and an M phase, in which mitosis partitions the genetic material and the cell divides. G1 phase  Metabolic changes prepare the cell for division. At a certain point - the restriction point - the cell is committed to division and moves into the S phase. S phase. DNA synthesis replicates the genetic material. Each chromosome now consists of two sister chromatids. G2 phase  Metabolic changes assemble the cytoplasmic materials necessary for mitosis and cytokinesis. M phase . A nuclear division (mitosis) followed by a cell division (cytokinesis). The period between mitotic divisions - that is, G1, S and G2 - is known as interphase. Mitosis Mitosis is a form of eukaryotic cell division that produces two daughter cells with the same genetic component as t

Organic chemistry part 3

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Hi guys, you're welcome to mystudyrom my name is David. Hope both the first and second part helped you a lot and if you are not getting it or feel confused you can use the comment box below….thanks Today we will be moving to the next part in the organic chemistry so feel relaxed and let's ride on…. Now let's continue from where we stopped in our chemistry. We are going into the alkyne family today.   The alkyne family: The alkyne family are unsaturated hydrocarbons with triple bonds attached to one of the carbons present in the compound. The alkene family has a general formula of CnH 2n-2 So now let's check out the list of compounds present in the alkyne family. Starting with Ethyne the first of the family. For the newbies i guess you will be thinking why is it ethyne not methyne?     I've explained this in the previous part and I'm still going to explain it again now maybe you can get it now. The alkyne starts with ethyne

Enzymology

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Hi guys, you're welcome to mystudyrom my name is David. Today we will be starting a new topic in biology which is Enzymology.   As I've said in my first post cytology I said logy (a Greek word) means study and from this word Enzym we can easily guess that we are referring to enzymes here so Enzymology means ( enzyme -study). So we can easily define Enzymology as the study of enzymes and enzymatic reactions in the body. What are enzymes?' Enzymes are organic catalysts usually proteinous in nature that speed up the rate of bio chemical activities in the body and they themselves remain unchanged at the end of the reaction. The protein component of the enzymes area called HOLOENZYMES. So guys, let's check out the properties of enzymes Properties of Enzymes: • They are proteinous in nature • They are specific in action • They are sensitive to temperature • They are soluble • They are active in small quantity • They are sensitiv

Cytology Part 2

Hi guys, you're welcome to mystudyrom my name is David. Hope the first part helped you a lot and if you are not getting it or feel confused you can use the comment box below…thanks Today I will continue from my last topic in Biology which is Cytology.   In the last part I stopped at the components of the cell and their functions but today we will GI a little bit deep into the cell where we shall study the cell cycle and the cell division. But before I move to that let me give you the similarities and differences between the plant and the animal cell. Starting with differences ·          The plant cell has a large vacuole while the animal cell has small vacuole ·          The plant cell is rectangular in shape while the anal cell is spherical ·          The plant cell store lipid as oil while the animal cell store lipid as fat ·          The plant cell has a cellulose cell wall while the animal cell has no cellulose cell wall ·          The plant ce