The Tubes

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  • Observing Osmosis

    dialysis tubing was used to mimic the selectively permeable membrane to show what osmosis does when placed in different solutes. We filled dialysis tubes fill with different percentages of solute and placed them in beakers full of a different solute. Through this experiment, I saw what happens when the solution becomes hypertonic, hypotonic, and isotonic. My hypothesis was that bag A would shrink because the water would leave the bag to go to the higher concentration. Bag B would stay the same because it would be isotonic. Bag C and D would swell because water would rush into the cell where…

    Words: 732 - Pages: 3
  • Transformation Of Pglo Lab Report

    transformation solution to into two separate tubes. Next, we used a sterile loop to transfer two to four larger bacteria colonies from an E.coli plate into each of the two tubes. The bacteria was observed under UV light to make initial observations. We pipetted 10 ul of pGLO plasmid (0.08 ug/ul) into one of the tubes. Both tubes were incubated on ice for ten minutes. After ten minutes of incubation, the tubes were heat shocked at 42°C for exactly 50 seconds and then returned to ice. After two…

    Words: 785 - Pages: 4
  • Cofactor And Enzyme Reaction

    There seemed to be an error in the experiment conducted, which will be later discussed. In order to show what should have happened, the absolute value was taken of the answers using the numbers that were read from the spectrophotometer. For example, in the PTU test tube the amount after ten minutes subtracted from the amount after twenty minutes gave the answer of -0.023, but instead, and instructed by our teacher, we took the absolute value and said it was 0.023. The formula used to display…

    Words: 1790 - Pages: 8
  • Toothpaste Energy

    Personal Energy and Material of Toothpaste The cycle of energy that gets put into the simple product of a tube of toothpaste is a rather lengthy one. Most people simply think of the raw materials that are put into the toothpaste, but what about the tube itself? Most people just consider the resources that are put into the paste, but what about the energy used to transport those resources or to mix them together. Perhaps one has considered the tube and the energy that was put into making it, but…

    Words: 841 - Pages: 4
  • Affinity Chromatography Lab Report

    Figure 3, Affinity Column: Protein Concentration and Enzyme Activity, shows the two peaks for protein concentrations on the red line. The blue line, showing the enzymes activity, overlaps with test tube six that contained the active trypsin. The lack of overlap over test tube one combined with a peak for a protein concentration identifies the inactive trypsin. Using the equation in the sample calculation of trypsin percentage, it was found that there was 75.6% yield of trypsin. Future labs…

    Words: 2097 - Pages: 9
  • Personal Narrative: Close Call On Current River

    finally arrived at the water’s edge my brother John and I were so excited, we basically leapt out of the car before it came to a complete stop. Larry and my uncles unloaded the cars, while my Aunt Janet and Sister Lorena went to pick up the tubes. John and I decided to jump in the water to cool off while everybody else got everything ready for the trip down the river. We were all laughing and smiling all the while oblivious to the impending tragedy that lies ahead. The moment I jumped into that…

    Words: 828 - Pages: 4
  • Steel And Tube Essay

    1. Introduction Steel and Tube is a New Zealand owned company with over 60 years of trading history. Steel and Tube are the leading suppliers of steel product and steel services of New Zealand. The company’s distribution and service network is spread in 40 locations in all over New Zealand and is listed among the top 50 companies on the New Zealand Stock Exchange in terms of market capitalisation. Steel and Tube contributes to New Zealand’s economy in all sectors. The supplies range from…

    Words: 1501 - Pages: 7
  • Guided Discovery Approach Case Study Essay

    Introduction This case study report is to outline the process of planning an activity in science understanding physical science for a 5 year old child with the expectation of learning the concept of motion, inertia, force, velocity, acceleration and gravity by using balls, blocks and tubes. The report will also outline the pedagogy approach adopted by educators to ascertain that the child will engage in a physical science activity, which will improve the child’s skills of problem solving,…

    Words: 1669 - Pages: 7
  • Dehumanization In The Holocaust Essay

    In these camps “the death rates were so high, from malnutrition, typhus and exhaustion that the disposal of corpses became a serious problem.” (THE CAMPS) The treatment in transporting and caring for the victims is probably one of the main factors in the dehumanization of people during Holocaust. The victims were treated inferior simply because of their nationality. The Nazi’s made it a point to degrade these people in every way possible by taking away their rights and free will.…

    Words: 799 - Pages: 4
  • Persuasive Essay On Cosmetics Animal Testing

    They discovered a form of testing called in vitro which was based on human cells using robotic screening (Bin, A264). Through this method, human tissue is grown in test tubes which are then exposed to the new substances being tested (Cole). Test tube testing eliminates animals from being poisoned in order to differentiate toxic from non-toxic ingredients (Cole). This artificially grown tissue has proven to have more accurate results in testing irritation than animal testing does (Cole). After…

    Words: 1600 - Pages: 7
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