Osmosis Design Lab November 19‚ 2011 Biology Defining the Problem and Selecting the Variables Research Question: What will happen to mass of the cell when it is placed in different solutions while trying to reach equilibrium? Background Information Osmosis is the procedure where water or different types of liquids move through a semipermeable membrane. This type of passage is considered as simple diffusion where no energy is required. This means that the liquid will have
Premium Solution Water
Osmosis Practical Report Introduction: To determine the biological changes that occur to potato cores over a period of time in different solutions of sucrose and to relate these changes to the phenomenon of osmosis. Method: We soaked several discs of potato cuted using a cork borer with around 1 centimeter of diameter and 2 milimeters of lenght into sucrose solutions with a different range of concentrations from 0 to 1.0M. Then we weighed all the potato
Free Concentration Solution Chemistry
Osmosis of Sucrose Solutions of Different Molarities Through Dialysis Tubing (a Semi-Permeable Membrane) I. DESIGN A. PROBLEM/RESEARCH QUESTION 1. How does increasing molarity of sucrose affect osmosis through dialysis tubing? B. VARIABLES 1. The independent variable in this lab is the molarity of sucrose each dialysis bag is filled with. The time (30 minutes)‚ the temperature (23C) and the type of dialysis tubing used are all constants. 2. The dependent
Premium Semipermeable membrane Dialysis tubing
What was the Bauhaus and what was its purpose? The Bauhaus was a school of art‚ architecture and design that existed in three German cities including Weimar‚ Dessau‚ and Berlin. The school was founded by Walter Gropius in 1919 and it lasted until 1933. During its time‚ Bauhaus went through different distinct periods under different directors and cities including expressionism‚ constructivism‚ functionalism and architecture. The Bauhaus was the start of modernism‚ at the same time‚ it changed the
Premium Bauhaus
Osmosis Abstract The basic principles of Osmosis and Diffusion were tested and examined in this lab. We examined the percent increase of mass and molarity of different concentrations of sucrose in the dialysis bag emerged in distilled water and the potato cores emerged in concentrations of sucrose. The data reinforces the principles of Osmosis and Diffusion‚ and in a biological context‚ we can simulate how water and particles move in and out of our own
Premium Osmosis Diffusion Concentration
Diffusion is the process in which particles move from an area of high concentration to an area of low concentration in order to evenly spread out. 2 Diagram. 3. During the diffusion tube experiment I noted that firstly ammonium hydroxide was placed on to a piece of cotton wool. The cotton wool (with the ammonium hydroxide) was then placed in to a diffusion tube containing around 10 pieces of curled red litmus paper lined up from one end of the diffusion tube to the other. I had observed
Free Molecular diffusion Diffusion Carbon dioxide
Microeconomics WA3 1. At its current level of production‚ a profit-maximizing firm in a competitive market receives $12.50 for each unit it produces and faces an average total cost of $10. At the market price of $12.50 per unit‚ the firm’s marginal cost curve crosses the marginal revenue curve at an output level of 1000 units. What is the firm’s current profit? What is likely to occur in this market‚ and why? Total rev | 12500 | Total costs | 10000 | TC=ATC(Q) = 10 ( 1000) = 10000 Profit=TR-TC
Premium Economics Perfect competition Costs
Osmosis and Plasmolysis Problem: What is the effect of Osmosis on a chicken egg? What is the effect of different solutions with various concentrations on plant cells? Hypothesis: 1. In an animal cell in a hypertonic solution the egg will swell‚ in a hypotonic solution the egg will swell. 2. In a plant cell in a hypertonic solution it will shrink‚ and in a hypotonic solution it will swell. Methodology: Part 1. A chicken egg is consecutively over time placed in each of 3 jars‚ each containing
Premium Cell wall Eukaryote Water
E3B柯玟曲 401110860 The Rime of the Ancient Mariner Part 3 In Part 3‚ the poem becomes more fantastical as the spiritual world continues to punish the Ancient Mariner and his fellow sailors. Like they have spent a long time drifting on the ocean with no wind or water‚ and everyone is sick of it. Then they saw a ghostly ship neared‚ but his mouth is too dry to shout. So he bites his arm to wet his lips with his own blood‚ just enough so that he can shout. His crewmates are so happy that they shout
Premium The Rime of the Ancient Mariner Albatross Samuel Taylor Coleridge
forensic investigator? 2. From where were the badnotes1.txt and badnotes2.txt files recovered? 3. What is the INFO2 file used for? 4. How do you generate a hash file in FTK Imager? Copyright © 2014 by Jones & Bartlett Learning‚ LLC‚ an Ascend Learning Company. All rights reserved. www.jblearning.com Student Lab Manual 5. What was the MD5 hash value in 043458.csv‚ the deleted e-mail file? 6. What is the Daubert standard? 7. Why must a forensic investigator be familiar with emerging technologies
Premium Forensic science