involved in blood clotting Blood clotting or blood coagulation occurs when blood vessel is damaged or broken. There are there mechanisms in blood clotting process: vascular spasm‚ platelet plug formation and blood clotting (coagulation). Vascular spasm Vascular spasm occurs immediately after a blood vessels get injury. The muscle of the blood vessel contracts and hold off the blood supply to the area and it can hold for minutes to hours; this process prevents the loosing blood from the body
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him or her having Sickle Cell Disease. What this is is it’s a disease that is genetically inherited and it involves the red blood cells. Mutations in the HBB gene cause this disease. This disease is inherited in an autosomal recessive pattern‚ which means both copies of the gene in each cell will have mutations. The parents of offspring with an autosomal recessive gene each carry one copy of the mutated gene. The blood cells form an abnormal crescent shape (normal cells are in a disk form). The
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Cited: James Welch. “Winter in the Blood.” 2008. New York: Penguin Books‚ 1986. 176. Print.
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Julianna Triano Block 4 November 19‚ 2010 Blood Donation Imagine a happy healthy teen. He does well in school and is easy to get along with. Imagine he is diagnosed with leukemia and requires daily platelet and blood transfusions just to stay alive. Now‚ imagine he has a rare blood type that requires him to be moved to a larger hospital for treatment. This is just another thing for him and his family to worry about. Similar stories happen every day in the United States. It is estimated that
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Investigation of Factors Affect Osmosis in Potatoes Aim The aim of the following experiment was to investigate the effect of varying the concentration of sucrose solution on osmosis in a potato. Preliminary Experiments One preliminary experiment was done before the main experiment. From the preliminary‚ we were trying to find out how osmosis actually occurred in potatoes‚ and gave us a vague idea on what the main experiment would be like. This preliminary will aid my prediction
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DETERMINATION OF THE WATER POTENTIAL OF POTATO TUBER CELLS. Method. Five sucrose solutions with varying molarity and one control containing distilled water were prepared and poured into test tubes. The potato discs were dried‚ weighed and added to the test tubes. The discs were then weighed again after a period of 24 hours. The percentage change in mass was then calculated. Apparatus.  Specimen tubes with stoppers x6  1cm3 diameter cork borer  razor
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Shakespeare uses blood as an important symbol to illustrate the characters feelings and beliefs. Blood is used everywhere in Macbeth‚ the beginning in the battle field scenes‚ after they kill Duncan‚ when Banque was killed and at the end when Lady Macbeth feels that blood has stained her. Blood is used in Macbeth to symbolize many things and the meaning of blood slowly progresses throughout the play. Blood in the play symbolizes different things as the play goes by; the imagery of blood goes from meaning
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Potato Osmosis Introduction: A shipwrecked sailor is stranded on a small desert island with no fresh water to drink. They know they could last without food for up to a month‚ but if they didn’t have water to drink they will be dead within a week. Hoping to postpone the inevitable‚ their thirst drives them to drink the salty seawater. They are dead in two days. Why do you think drinking seawater killed the sailor faster than not drinking any water at all? Today we explore the cause of the sailor’s
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Stained Red In the play Macbeth‚ by Williams Shakespeare‚ blood is a key motif that is traced and envelops the overall theme. In the play‚ a Scottish general by the name of Macbeth indulges in a bloody rise to power and a tragic downfall. Set in medieval Scotland‚ Macbeth lets his thirst for power and his manipulative wife by the name of Lady Macbeth convince him to go on a rampage of murder stemming into chaos and eventual death for the once honorable general. Blood is prominently mentioned throughout
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Informational Speech Outline Topic: Blood Donation Specific Purpose: To inform the audience about donating blood. INTRODUCTION Attention Getter – Do you know how you can save someone’s life? You don’t have to be a superhero with special powers. All you need is yourself and the nearest blood bank. Topic - Today I’m going to talk to you guys about donating blood. Ethos & Audience Adaptation – The reason I chose this topic is because I am a blood donator. I go in about every
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