of resistance mechanisms to drug treatment. Various cellular changes that have been implicated in the development of drug resistance in cancer cells include: the increased expressions of P-glycoprotein (a multidrug transport protein) and multidrug resistance-associated protein (MRP-1); increased levels of the cellular detoxification protein‚ glutathione; and changes in the expression of apoptosis associated proteins such as Bcl-2‚ FasL and p53‚ which generally results in promoting cell survival [1
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Membrane Permeability Aim To determine the effect of various chemicals and high temperature on the membrane permeability of beetroot Hypothesis Organic solvent and high temperature will destroy the cell membrane and make it permeable to the red pigment. The higher the concentration of the alcohol‚ the greater will be this effect. Principle Beetroot is the material used in this experiment to demonstrate the effects of high temperature and chemicals on the permeability of the cell membranes
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Unit 3 Exercise 1: Specifications – Definitions Define the following terms: Application (in terms of cabling infrastructure) – systems supported by telecommunications cabling; includes Ethernet‚ Token ring‚ Fiber Distributed Data Interface (FDDI)‚ and Asynchronous Transfer Mode (ATM) Unshielded Twisted-Pair (UTP) – a type of cabling containing pairs of copper wires that are twisted together with plastic casing but without an electromagnetically shielded jacket; typically used in Ethernet applications
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Plan:- Independent Variable- Temperature is what I will be changing in the experiment. I want to find out what effect temperature has on the permeability of a cell membrane. Controlling other Variables- I will use measures to ensure that everything stays the same in my test to gain the best and most reliable results possible - Same volume of water that I put the beetroot into after heating. - The beetroot I use will be the same size each time‚ I will ensure this using a cork borer. - The beetroot
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Derek Fuchs Module 7‚ Homework 7‚ MGMT210 Brief Exercise 12-3‚ Three Types of Activities O‚ I‚ F F Repayment of long-term debt O Purchase of equipment O Collection of customer’s account F Issuance of common stock I Purchase of another company F Payment of dividends O Sale of equipment Brief Exercise 12-4‚ Direct versus Indirect Method Direct‚ Indirect I Net income I Increase in accounts receivable D Collections on accounts receivable D Payments on accounts payable I Decrease in accounts payable
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Title L6 – Soil Permeability – Constant Head Test Introduction Permeability is measured in term of water flow through the soil in a given time. The soil permeability is a very important factor to study the behavior of soil in its natural condition with respect to water flow. The size of pore space and interconnectivity of the spaces help determine permeability‚ so shape and arrangement of grains play a role. Often the term hydraulic conductivity is used when discussing groundwater properties
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Southeast Airlines . . . 3-1 Data collected on the yearly demand for 50-pound bags of fertilizer at Wallace Garden Supply are shown in the following table. Year Demand for fertilizer (1‚000s of bags) 1 4 2 6 3 4 4 5 5 10 6 9 7 10 8 11 9 15 10 16 11 18 a. Develop a 3-year moving average to forecast sales. b. Then estimate demand again with a weighted moving average in which sales in the most recent year are given a weight of 3 and a weight of 2 for the
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this investigation I will be measuring the effects of temperature on the membrane permeability of beetroot. I will be measuring the amount of anthocyanin that will diffuse out of the beetroot. The way in which I will measure the anthocyanin is to check the light absorbency of the solution using a colorimeter. The higher the reading on colorimeter the more anthocyanin present in the solution To find out the permeability of the beetroot membrane I will firstly cut out cylinders of beetroot using a cork
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beetroot a) Decide what you think will be the effect of alcohol on beetroot cell surface membranes and how this will affect their permeability. Write down your idea as a hypothesis that you can test‚ and support your idea with biological knowledge. Hypothesis “The greater the concentration of the alcohol the more red pigments (betalains) move into the solution.” Biological knowledge: The exposure of the beetroot cell membrane to alcohol makes it more permeable. If there would be no membrane there
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Eric Scantlebury NT1310 Physical Networking Unit 3 Assignment 1: Specifications - Definitions 4/10/14 Application Describes cables‚ fire ratings and shielding Unshielded Twisted Pair (UTP) Types of Ethernet and phone cables twisted around each other to decrease interference from EMI. Has no shielding. Shielded Twisted Pair (STP) Same as the UTP cables except it is shielded in a metal sheath around it to stop external interference. Fiber-Optic Cable A cable that uses glass to transmit data using
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