PhysioEx™ Lab: Cell Transport Mechanisms and Permeability Activity 1: Simple Diffusion Chart 1 Dialysis Results (Average Diffusion rate in mM/min) Solute Membrane (MWCO) 20 50 100 200 NaCl (—) 0.0150 0.0150 0.0150 Urea (—) (—) 0.0094 0.0094 Albumin (—) (—) (—) (—) Glucose (—) (—) (—) 0.0040 1) Which solute(s) were able to diffuse into the right beaker from the left? NaCl‚ Urea‚ Glucose 2) Which solute(s) did not diffuse? Albumin 3) If the solution in the left beaker
Premium Diffusion Osmosis Molecular diffusion
Title: What is the effect of concentration of acid on the rate of diffusion in agar blocks? Aim: To investigate how the concentration affects the rate of diffusion of hydrochloric acid through agar blocks Research Question: To determine how will different concentrations (0.1M‚ 0.2M‚ 0.3M‚ 0.4M‚ 0.5M) of hydrochloric acid affect the rate of diffusion of sodium chloride through agar blocks? Introduction-include prediction; information you have researched before Diffusion refers to the passive movement
Premium PH indicator Sodium chloride Chlorine
1.0 Introduction 1.1 Aim and Assumptions: The aim of this experiment is to observe the rate of diffusion of diethyl ether vapour into stagnant air‚ and then determine the diffusivity. An error analysis of this calculation also had to be carried out. The following assumptions made were: * Diethyl Ether is an ideal gas * Partial pressure at the top of the tube was equal to zero * Mass transfer resistance between the liquid surface at the bottom of the tube is insufficient‚ compared with the
Premium Diffusion Molecular diffusion Thermodynamics
Bullies vs Bystanders According to “Tales of Bullying” more than 15‚000 kids got suspended in 2008-2009 because of bullying and bystanders helping them. Bullying has caused lots of suicides. Also bullying has caused depression and other sorts of things. Bullying is a terrible thing that a lot of people can do. A bystander is far worse than a bully because of they keep the bullies’ courage up‚ they are helping a suicide‚ and they can simply can stop the bullying.
Premium Bullying Abuse Victimisation
Sylvester Rimando Geography 2 September 19 2012 Cultural Diffusion: Sushi Sushi is one example of cultural diffusion in which went on to expand on a global scale from a native treat of Japan into an international delicacy. To scope out on how sushi became an international sensation‚ there are 4 factors that identify the chronicles of its origins and through an expansion of this treat internationally. These 4 factors are: the hearth (originating from) ‚
Premium Sushi
“Tales of Bullying‚” bullying can result in suicide‚ depression‚ and just why would you want to put someone down? You may ask one of the reasons could be they felt left out so they feel that you should too. I also think a bully is worse than a bystander because they can cause suicides‚ guilt‚ and they lose trust. I would not lose trust from my family just to bully somebody. I don’t know about you but I don’t get a good feeling when I put someone down. That is pretty crazy if you like putting people
Premium Suicide Bullying Mental disorder
Being a bully or a bystander is a bad choice to make in your life. The issue is getting worse every single day. Killing their self‚ cutting their self‚ depressed a lot‚ skipping school‚ taking drugs‚ and mostly 95% of them cry their selves to sleep at night. In my opinion because of Brain Pop‚ I think bystanders are worse than bullies because they just sit there and watch people get hurt. Everyone gets bullied at some point and some age! As you can see‚ Brain pop teaches a lot! Students get bullied
Premium Abuse Bullying High school
Cell Size: Is Bigger Better? Problem: Why are cells small? Objective: To see the relationship between cell size and diffusion of materials. Hypothesis: If we cut three different sizes of cells‚ then the smallest one will survive the longest due to its sufficient permeable membrane. Cube | Total Volume (cm^3) | Surface Area (cm^2) | Index SA/VOL | 3 | 27 | 54 | .5 | 2 | 8 | 24 | .33 | 1 | 1 | 6 | .16 | Index of Cubes Cube Index SA/VOL Surface Area to Volume Cube | Total
Premium Area Organelle DNA
Lab Report Diffusion is - One of two kinds of passive transport‚ - Diffusion can transport ions from higher concentration to lower concentration region without any other forces. - A net movement of molecules in and out of cell membrane - Diffusion can be affected by the steepness of the concentration gradient. Lab question: Is the rate of diffusion influenced by the presence of second molecule? Prediction: the rate of diffusion is influenced by the presence of second molecule
Premium Diffusion Molecular diffusion Chemistry
in the artificial cells to the diffusion rate using the phenolphthalein-NaOH agar and the HCl solution. Lab #2 was a model of diffusion and osmosis‚ in which we filled the model cells with different solutions and determined the rate of diffusion. In lab #3‚ the results demonstrated the interactions between selectively permeable membranes‚ water‚ and solutes and how they are important in cellular and organismal functions. In lab #1‚ the results showed the diffusion rate between the certain time period
Premium Osmosis Chemistry Diffusion