Sep. 21‚ 2014 Stem Cells Stem cells are the beginning of organism creation and have the potential to separate‚ becoming any kind of organism‚ endlessly. These cells have not gone through the process known as differentiation‚ which gives the cell a specific function. Technically‚ due to research over the recent years‚ scientists could grow certain organs with through stem cells because of the fact that these cells can be manipulated early on. There are multiple stem cells that have been determined
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Quarter 7:30 - 9:00 PM‚ 25 April 2000 NAME 1. [10 points] What are the concentrations of HSO− ‚ SO2− ‚ and H+ in a 0.20 M KHSO4 solution? (Hint: 4 4 H2 SO4 is a strong acid; Ka = 1.3 × 10−2 for HSO− .) 4 2. [15 points] Calculate the pH of 1.00 L of the buffer 1.00 M CH3 COONa/1.00 M CH3 COOH (pKa = 4.74) before and after the addition of (a) 0.080 moles NaOH and (b) 0.12 moles HCl. (Assume there is no change in volume). 3. [10 points] The following reaction is found to be first order
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Ford CEO Alan Mulally is known for starting meetings by saying “Data will set you free” and for trying to change Ford’s culture to one that is based on increased accountability‚ more information sharing‚ and hard metrics. “You can’t manage a secret‚” he is also fond of saying. Although it’s not clear whether Mulally’s approach will work at Ford‚ which is known for its self-contained fiefdoms where little information is shared‚ some companies have found that managing people according to hard metrics
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CELL INJURY: CAUSES OF CELL INJURY‚ MECHANISMS OF REVERSIBLE AND IRREVERSIBLE CELL INJURY. CELL INJURY. Causes of cell injury range from gross mechanical external causes to mild endogenous causes as genetic lack of enzymes etc. Virtually all forms of tissue injuries start with molecular or structural alterations in cells. Under normal conditions‚ the cells are in: ❖ homeostastatic „steady“ state Normal cell is confined to relatively narrow range of functions and structure by
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What affect does the concentration of sugar have on the rate of respiration of yeast? Apparatus: 1. Stopwatch with a resolution of 0.001 seconds 2. 4 test tubes 3. 200 ml of yeast in a beaker 4. 200 ml of glucose solution 5. 500 ml of limewater 6. 2 delivery tubes 7. 1 test tube rack 8. 1 water bath set to 37°C 9. 2 pipettes 10. 3 measuring cylinders with a resolution of 1ml‚ ranging from 0-30ml. 11. 200 ml of water Hypothesis: The higher the concentration
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Ch. 1: Biology: Exploring Life 1) Slides 1 and 2: What is the main difference between physiological adaptation (as in sense‚ respond and adapt to the environment) and evolutionary adaptation? Evolutionary adaptation occurs over generations. Evolutionary adaptation does involve genetic change but it’s the change in traits as a result of genetic change that drives natural selection and evolutionary adaptation (just genetic change alone won’t drive evolutionary change). Physiological adaptation is
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MDM4U Final Exam REVIEW **This review is a supplement only. It is to be used as a guide along with other review. Chapter 1 1. The circle graph shows the relative size of each grade (9‚ 10‚ 11‚ and 12) in a high school. (a) If the school has 900 students in all‚ calculate the number of students in each grade. (b) Construct a new circle graph to show how the percent of Grade 9 students rose by 10% and the percent of Grade 11 students fell by 10% the following year. Compare graphs
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Throughout the Modes of Inquiry course‚ we did different activities that influenced my critical thinking and analytical ability. One of the two experiences that impacted me the most was the ropes course‚ because it taught me how to work as team and it helped me to start talking to other people and be less timid. The other experience that had an impact in my life was reading both books Blindspot and They Say‚ I Say. Thanks to them now I am more careful when I write and how I act towards others. The
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Cell Phone Use in Schools The use of cell phones in school is a controversial subject. There is a definite defining line between administration on one side and students on the other. The amazing thing about cell phones is that they are no longer just used for calling or texting. They have become an essential multi-tool wonder. Today’s cell phone is cutting-edge technology at your fingertips. While students do understand the apprehension of faculty to allow cells phone use school‚ we too have reasons
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to let you know that if you do have a baby‚ you are risking 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
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