Osmosis Lab Conclusion The purpose of this lab is to determine whether salt affects the movement of water in the cell. Independent variable is the factor that affects the value of variables dependent to it. In osmosis lab‚ the independent variables are the potato and onions. The dependent variable is the variable whose value is measured to determine the extent of the effect of another variable to it‚ as in an experiment. In osmosis lab‚ the dependent variable is the length of the potato. The controlled
Premium Concentration Osmosis Chemistry
Conclusion to HIV Aids Media has a powerful role to play in educating the world. It was years ago‚ that Acquired Immune Deficiency Syndrome‚ the disease now recognized all over the world as AIDS‚ was first detected and recorded in Asia. Over the past two decades‚ the infection rate has grown rapidly in Asia‚ which is now second number to Africa in the number of HIV positive people. In Pakistan‚ HIV and AIDS was first detected in 1986 and according to UNAIDS estimates‚ this country now has over
Premium AIDS HIV Condom
1. Diffusion and Osmosis‚ June 4‚ 2013 2. Purpose: The purpose of this lab is to help give visual understanding of diffusion which is a solution of high concentration spontaneously (no energy required) moving to an area of low concentration. Also taking a look at osmosis‚ which is the movement of chemicals across the cell membrane. Osmosis requires some type of energy to be put in for this to happen. After these experiments we should have a better idea and visualization of how chemicals transfer
Premium Starch Carbohydrate Concentration
Information Osmosis is one of the four methods of moving particles across membranes along with simple diffusion‚ facilitated diffusion‚ and active transport. Water is able to move in and out of most cells freely. Sometimes the number of water molecules moving in and out is the same and there is no net movement‚ but at other times the molecular movement from one direction exceeds the movement from other direction and creates a net movement. This net movement is called osmosis. Osmosis is due to differences
Premium Osmosis Chemistry Concentration
Analysis and Interpretation Trends of the data: With the cross-sectional area on the whole it seems to increase as the river progresses‚ with Site 1 being 9.23 and Site 5 being 18.13. However Site 4 has a higher figure than Site 5‚ yet this was due to the fact that we could only use part of Site 4‚ as one half of the river was completely dry‚ so the results from that site are likely to be an anomaly. Looking at the Bedload in the bar graphs it is clear that with the pebble roundness the pebbles
Premium Geomorphology
Lab Report on Osmosis and Diffusion Biology 1‚ Period 3 March 15‚ 2010 Lab Team: Jason Perez‚ Kicia Long‚ Chris McLemore Purpose: The purpose of this lab is to observe the acts of passive transport: diffusion and osmosis in a model membrane system. The experiment will show how molecules in solution move from areas of higher concentration to areas of lower concentration. The model membrane is dialysis tubing. Materials Used 2.5 cm dialysis tubing 15% glucose
Premium Osmosis Semipermeable membrane Diffusion
Introduction and Conclusion Ignacio Reyes COM 220 October 05‚ 2012 Mary Mc Williams I would start off my paper writing about different types of drugs and the effects it has on society these days. The drugs‚ the side effects‚ and how these affect our loved ones. From experience I can say that using drugs and going the wrong way will always bring problems to the table‚ emotionally and financially. I will also be talking about drugs and where they come from‚ who the bad people
Premium The Reader Rhetoric Reader
Diffusion & Osmosis 9/16/14-9/19/14; Jessica Bullock‚ Andrew Buchholz‚ Kristamae Masiclat TITLE: Different Ways to Express Diffusion and Osmosis INTRODUCTION: Diffusion is the spontaneous movement of a substance down its concentration gradient‚ from a region where it is more concentrated to a region where it is less concentrated. Osmosis is the diffusion of water across a selectively permeable membrane. The objective of this lab is to observe the different effects of diffusion and osmosis through
Premium Osmosis Diffusion Chemistry
Diffusion and Osmosis Shown In Solutions Section 1: Abstract This lab‚ title Diffusion and Osmosis‚ was centered around the diffusion across a cellular membrane and how exactly materials move and diffuse in concentrations. Both diffusion and osmosis are forms of movement that are part of passive transport dealing with cell membranes. Diffusion is where the solutes move from an area of high concentration to a low concentration. Water goes through the cell membranes by diffusion. Osmosis is specifically
Premium Osmosis Concentration Cell wall
membrane OBJECTIVES: To investigate the effect of concentration of blackcurrant squash on osmosis in chipped potatoes. INTRODUCTION: In biology‚ osmosis is defined as the diffusion of solvent molecules (usually water molecules) across a semi-permeable membrane from a region of lower solute concentration to a region of higher solute concentration. Osmosis is of great importance in biological processes where the solvent is water. The transport
Premium Potato Osmosis Cell wall