• Cell Transport Mechanisms
    3 Simulating Osmotic Pressure OBJECTIVES 1. To explain how osmosis is a special type of diffusion. 2. To understand that osmosis is a passive process that depends upon the concentration gradient of water. 3. To explain how tonicity of a solution relates to changes in cell volume...
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  • Essays
    , Diffusion, Permeability, Cell Membranes Safety: Follow all standard laboratory safety procedures. Protective equipment must be worn. Procedure: Lab 1A: 1. Obtain a 25cm piece of dialysis tubing that has been presoaked in distilled water. 2. Tie off one end securely. 3. Open the other...
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  • cell transport
    factors that influnce diffusion rates: distance, the size, temperature, concentration gradient, and elestrical forces. According the computerized simulation lab that is a way to study of transportsmechanism in living membrane cells whis is very important in human body. Simple Diffusion is the...
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  • Lab 1-2
    Exercise 1: Cell Transport Mechanisms and Permeability: Activity 3: Simulating Osmotic Pressure Lab Report Pre-lab Quiz Results You scored 25% by answering 1 out of 4 questions correctly. 1. Which of the following is true of osmosis? Your answer : b. Movement is against the concentration...
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  • Physioex 3 Review Sheet
    Cell Transport Mechanisms and Permeability Activity 1: Simulating Dialysis (Simple Diffusion) Chart 1 – Dialysis Results |Membrane (MCWO) | |Solute...
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  • Ap Bio Lab One
    Introduction: This lab helps further our understanding of essential principles behind diffusion and osmosis. Permeability, concentration gradients, plasmolysis, water potential, and equilibrium were also concepts that were delved into in this lab. Understanding how diffusion and osmosis works is...
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  • Transport Mechanisms
    Exercise 1: Cell Transport Mechanisms and Permeability Name: Anne Kinsley Chart 1 Dialysis Results (average diffusion rate in mM/min | Membrane (MWCO) | Solute | 20 | 50 | 100 | 200 | NaCl | 0.0000 | 0.0150 | 0.0150 | xxxxxxxxxxxxxxxxx | | | 0.0300 | | | Urea | 0.0000...
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  • Diffusion
    diffuse through and refuses others. Without permeability, nutrients and oxygen would not get in, nor would waste be diffused from the cell. In the various experiments that we performed, we used these concepts and applied them to the lab. In saying this, water will flow from lower solute concentration...
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  • Sugar Respiration in Yeast
    1 Experiment Membrane Transport Objectives ► Referring to energy, what two ways can substances enter a cell? What is active transport? What is passive transport? How is osmosis related to diffusion? How can we demonstrate active transport? How can we demonstrate Brownian movement? How can we...
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  • Stem Ed/Chm Nanotechnology 2011
    facilitated diffusion differ in response to a concentration gradient? Simple Diffusion Variables: n number of molecules inside cell (mol) t time (seconds) P permeability constant for a particular molecule (cm/sec) A surface area of the cell membrane (cm2) C Concentration of diffusing...
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  • Physioex 8.0
    2 Passive transport includes which of the following processes? Correct: Osmosis Passive transport includes osmosis. --------------------------------------------------------------------------Question 3 Refer to Activity 1: Simulating Dialysis (Simple Diffusion). Which of the following passed...
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  • Mrss
    Physioex 9.0 Review Sheet Exercise 1 Cell Transport Mechanisms and Permeability Name Lab Time/Date ___ Activity 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. Size of material and concentration 2. Why do you...
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  • Physio
    lower concentration. Osmosis is the diffusion of water across a semipermeable membrane. Facilitated diffusion is the movement of molecules across a selectively permeable membrane with the aid of specialized transport proteins embedded within the membrane. In this lab, we will be simulating each...
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  • Essay Ap Bio
    your experiment; and (c) an explanation of those results based on the principles involved. (Be sure to clearly state the principles addressed in your discussion.) STANDARDS: A. EXPERIMENTAL SET-UP (1 point each) ___ 1. Experiment based on concentration gradient ___ 2. Experiment based on...
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  • Exercise 1
    Exercise 1 Cell Transport Mechanisms and Permeability Name ____________________________________________________________ Lab Time/Date ______________________________ Activity 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. * The size...
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  • Membrane Permeability
    Experiment 5 Title: Membrane Permeability Objectives: 1. Define solvent, solute, solution, selectively permeable, diffusion, osmosis, concentration gradient, equilibrium, turgid, plasmolyzed, plasmolysis, turgor pressure, tonicity, hypertonic, isotonic, hypotonic; 2. Describe the effects of...
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  • Review Sheet
    to the left down its concentration gradient with more pressure. This lead to increase in pressure on the right side to prevent the water from crossing the membrane. 2. Describe one way in which osmosis is similar to simple diffusion and one way in which it is different. a. Both in simple...
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  • Lab 1

 Summary: In this Activity, I learned/observed that: ( write 1-2 sentences on what you observed by doing this experiment – think “big picture” Activity 2: Simulating Facilitated Diffusion Data...
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  • Exercise 1: Cell Transport Mechanisms and Permeability Worksheet
    questions will be worth 1 point each whereas Short-answer type questions will be worth 2 points each. This lab will be worth a total of 51 points but will be converted to a percentage grade when registered in your “Gradebook”. |ACTIVITY 1: Simulating Dialysis (Simple Diffusion...
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  • Diffusion Lab Report
    glucose concentration (2.00). In the Osmosis experiment we demonstrated how water molecules can pass through the membrane down its concentration gradient; and/or to make the osmotic pressure equal on both sides of the membrane. NaCl showed that with a 20 (MWCO) membrane normal rate diffusion...
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