Diffusion

The Effects of Osmosis and Diffusion Lab Claire Albers, Natania Yeung, Sophia Woo, and Helen Nguyen 4A Introduction Purpose The purpose of this lab was for us to be able to see the real life effects of osmosis and diffusion and to see how sugar concentration changes the amount of osmosis and diffusion to occur. Background For this lab you will need to know the definitions of diffusion and osmosis. Diffusion is a kind of passive transport that describes that molecules tend to move from areas of

Diffusion and osmosis, Diffusion and osmosis happens in everyones everyday way of living, this can include when you spray your deodorant before school in the bathroom to then find going into the next room your still chocking on the dry smell of the deodorant this is diffusion when the particles in the air move from one place to another. Other example is when you go to have a bath, you fill the water put a bath bomb in the water and go get your towel and clothes when you get the bath bomb is gone

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 think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? The molecules were too large to pass through. This is what I predicted

Investigation 2: The question that was trying to be answered was what affects the rate and direction of diffusion in a system. The question was asked in order to determine what substances would take in water through their selectively permeable membrane of the dialysis tubing rather than let out their substance. This experiment demonstrated how different solutions act with water and whether or not they are hypotonic, isotonic, or hypertonic. In this experiment different substances were placed

solution, passive transport, diffusion, and osmosis occurs. During passive transport, diffusion of a substance takes place across a membrane without energy contribution, because of diffusion, the tendency for molecules to spread out. Net movement allows substances to move in one direction. Many molecules and hydrocarbons diffuse down the concentration gradient, moving from a high concentration to a low concentration. Without diffusion, osmosis cannot occur, osmosis is diffusion of water. During osmosis

Introduction The purpose of this lab is to understand diffusion and osmosis by using deshelled chicken eggs. Before obtaining the experiment, we must first understand and define diffusion and osmosis. Both diffusion and osmosis are passive transport processes meaning they do not require any input of energy. Diffusion is the movement of molecules or atoms from an area of high concentration to an area of low concentration along its concentration gradient (solute). Osmosis is the movement of water (solvent)

Diffusion and Osmosis Diffusion and osmosis are examples of passive transport, which was shown in the lab. Due to diffusion and osmosis, solutions can either be hypotonic, hypertonic, or isotonic. Solutions that are hypotonic have more solute concentration inside the cell than outside the cell. Solutions that are hypertonic have less solute concentration inside the cell than outside the cell. A solution that is isotonic has an equal amount of solute concentration inside and outside the cell. Now

principle is divided into two classifications: diffusion and osmosis. Diffusion is the movement of substances from an area of higher concentration to an area of lower concentration and they become evenly distributed throughout both regions (Biology Department, 2015).Furthermore Osmosis is the movement of free water from an area of higher concentration to an area of lower concentration across a semi-permeable membrane (Biology Department, 2015).Diffusion and osmosis regulate the quantity of solutes

Simple Diffusion Activity 1: Simulating Simple diffusion 1. What is the molecular weight of Na+? 22.99 or 23 2. What is the molecular weight of Cl-? 35.45 3. Which MWCO dialysis membranes allowed both of these ions through?50,100, 200 4. Which materials diffused from the left beaker to the right beaker? Urea, NaCl and glucose diffused 5. Which did not? Why? Albumin was too large to diffuse into the right beaker. Activity 2: Simulating Dialysis 6. What happens to the urea concentration

concentration across the membrane, this is called diffusion. In other words, when particles go down the concentration gradient, also called passive transport. A special type of diffusion is also called osmosis, which is the diffusion of water, meaning water particles (H2O) move from high concentration of water particles to a low concentration through a selectively permeable membrane. Higher water concentration can also be phrased as higher water potential. Diffusion is a spontaneous reaction that occurs to