Lab # 2 Diffusion & Osmosis Introduction Kinetic energy‚ a root of energy stored in cells‚ causes molecules to hit into each other and move in new directions. Diffusion is the result of this contact. Diffusion is the random movement of molecules to an area of lower concentration from an area of higher concentration. Osmosis is a type of diffusion. This is the diffusion of water through a selectively permeable membrane from a region of higher water potential to a region of lower water
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ANSWER KEY Fundamentals of Oral Communication (English 203) Final Exam Spring 2015 Name: _________________________ ID: ____________________________ Instructor: ______________________ Section: ________________________ Date: May 14‚ 2015___________________ Time: 2 hours The final exam is 20% of the course grade. Directions: Read the speech below and then answer the questions on the provided exam booklet. Speech by Anthony Lake‚ UNICEF Executive Director‚ in
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surroundings‚ it tries to make concentration of solution inside and outside itself equal. However‚ the solutes are too big to pass the cell membranes without the help of channel proteins‚ or transport proteins. Water may freely pass through the membrane by osmosis‚ which requires no energy. Thus‚ the cell starts to take in‚ or release‚ water until it is isotionic to its
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Osmosis is the diffusion of water molecules from an area of high concentration of sucrose solution to an area of lower concentration of sucrose solution‚ through a selectively permeable membrane. The water molecules move down a concentration gradient in osmosis. Two diagrams of osmosis are shown in figures 1 and 2. Figure 1 shows the diffusion of water molecules through a selectively permeable membrane from an area of highly concentrated sucrose solution to an area of lower concentrated sucrose solution
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Domestic Violence: A Serious Issue Domestic violence is an occurrence of violence that is usually‚ but not limited to‚ when a loved one tries to physically or psychologically dominate another. Domestic violence leaves an everlasting scar of pain and fear for the victim. Someone’s life could be forever changed by an outbreak of domestic violence. Every nine seconds in the United States‚ a woman is assaulted or beaten (“Domestic Violence Statistics”‚ 2012). Although this is an unnerving statistic
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of different concentrations of saline solution on Red Blood Cells. When a Red Blood Cell is submersed in a high concentration of saline solution it will create a hypertonic environment and therefore cause the cell to rupture due to the process of osmosis. The methods used to collect data were observation and note taking. Overall the results proved the hypothesis correct with major findings being a higher concentration of salt causing a hypotonic environment and a low concentration. Recommendations
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Abortion is a Serious Ethical Issue: Usually debates about abortion focus on politics and the law: should abortion be outlawed and treated like the murder of a human person‚ or remain a legal choice available to all women? Behind the debates are more fundamental ethical questions which aren’t always given the specific attention they deserve. Some believe that the law shouldn’t legislate morality‚ but all good law is based upon moral values. A failure to openly discuss those values can obscure important
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Introduction: Diffusion and osmosis are passive processes of transport. Passive transport involves no disbursement of energy by the cell. Diffusion movement is from high concentration to low concentration‚ which the driving force for this type of movement is kinetic energy particles themselves. Which crystal (Methylene blue‚ solid or Potassium Permanganate KMnO4-purple) will move further than the other due to the driving force (kinetic energy)? My prediction is that Potassium Permanganate KMnO4-
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Joanna Packham ENG 111 Reverse Osmosis in Our Life My husband and I installed a reverse osmosis drinking water system in our home. I have traveled a lot recently and met lots of people including engineers on the yachts that thought me a lot abut reverse osmosis systems. They explained to me that RO are declining in popularity because they remove the minerals as well the impurities from the water. Long-term consumption of filtered water had negative health effects. I was asking myself is RO water
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bunch of independent clauses together with "ands" and "buts" results in the infamous Answer Selected Answer: c. Run on sentence . Question 2 .2 out of 2 points Correct When two independent clauses are glued together with nothing more than comma the result is a Answer comma splice. . Question 3 .2 out of 2 points Correct An dependent clause masquerading as s sentence is known as a Answer CorrectAnswer: a. fragment. . Question 4 .2 out of 2 points Correct
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