Study guide questions: Movements through membrances 1. Prepare a graph that illustrate the diffusion distance of potassium in 10 minutes 2. Explain your graph : 3. Define simple diffusion: 4. Define osmosis: Osmosis can be defined as the movement of solvent molecules across a semipermeable or selectively permeable membrane ‚from a region of lower concentration of the solute to that of a higher concentration till equilibrium is attained. 5. What is the change in the level of molasses
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Cell Membrane Developers of Lab: Adapted by James Kirby JD726‚ Jennifer Mortellaro JD449‚ and James Prockup JD575 from a publication by the Department of Biological Sciences at Western Michigan University‚ Kalamazoo‚ MI Overview of Lab: Description: The purpose of this lab is to illustrate the effects that temperature and solvents have on the cell membrane. Red beet tissue contains large amounts of betacyanin‚ a red pigment‚ located in the large internal membrane vacuoles
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Jasmin Brewer ENG101-002 June 19‚ 2013 Disability What is a normal person? Is it a man playing basketball with his friends in a park? Is it a woman riding horses through a grassy field? Or is it the double amputee that wears expensive sunglasses on a summer day? These images have all been depicted in the media‚ but the latter is not shown as frequently. If the media features disabled persons more often and in a better light‚ it will become the norm‚ therefore evoking unity among all Americans
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The effect of temperature on the cell membranes of beetroot cells and amount of pigment released. Apparatus • Corer size 4 • White tile • A Beetroot • Automatic Water Bath • Segregated knife • A thermometer • Stopwatch Method: • First take the white tile and the corer. Then collect a cylinder of beetroot by pushing the corer into the beetroot and withdrawing it. The cylinder remains inside the corer- so push it out with the end of a pencil. • Collect 3 cylinders
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Felons Be Able to Vote? “We let ex-convicts marry‚ reproduce‚ buy beer‚ own property and drive. They don’t lose their freedom of religion‚ their right against self-incrimination… they can’t be trusted to help choose our leaders… If we thought criminals could never be reformed‚ we wouldn’t let them out of prison in the first place (Chapman‚ Steve).” Many believe that felons should be able to vote due to the fact that they served their time in prison and already received their consequence. When felons
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Purpose: Examine the role of the cell membrane in the cell by disrupting its function using temperature (Biology 107 Laboratory Manual 2014). This will improve the general understanding of optimal growing temperatures and the breakdown of the cell membrane Procedure: Betacyanin solution of a known concentration was diluted to create a dilution series‚ then placed in a spectrophotometer set to 525 nm. The absorbance of the dilution was used to create a standard curve for betacyanin. Discs of living
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Ethics Case: Livent – When Maria…When? Summary Livent‚ a successful live entertainment company‚ known for performances of Phantom of the Opera‚ Ragtime‚ and Sunset Boulevard‚ was sold in 1998
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Ex felons should be able to vote after finishing probation or parole. voting would help them readjust to everyday life‚ we let them drive and buy alcohol‚ so why not let them vote. If we truly want people convicted of felonies to re-engage with society‚ become rehabilitated‚ and feel a part of a broader community (thus creating incentives not to recidivate) our state should do everything possible to re-incorporate these individuals into mainstream society. The number of Americans who cannot
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Describe the structure and function of each of the eukaryotic organelles. ”A eukaryotic cell is sectioned by internal membranes into different functioning categories called organelles. For example‚ the nucleus houses DNA‚ the genetic component that controls the cells activities. (Boundless. “Introduction” Boundless Biology). The Cytoplasm is the material between the cell membrane and the nucleus. It has a lot of responsibilities within the cell. It contains enzymes for breaking down waste and also
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1a. Aquaporins are membrane proteins that have fourteen various structures however the most common form is that of a homotetramer. The homotetramer is often found in the membrane and composed of four aquaporin membranes. The structural arrangement creates a fifth channel in the middle that allows for gas transportation. 1b. The direction of H2O molecular flow through a channel is determined by an osmotic gradient. 1c. One of the mechanisms that prevents proton channeling is due to the (ar/R) and
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