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 on my Hypothesis
Premium Diffusion Molecular diffusion Osmosis
Exercise 2-1 (10 minutes) 1. The wages of employees who build the sailboats: direct labor cost. 2. The cost of advertising in the local newspapers: marketing and selling cost. 3. The cost of an aluminum mast installed in a sailboat: direct materials cost. 4. The wages of the assembly shop’s supervisor: manufacturing overhead cost. 5. Rent on the boathouse: a combination of manufacturing overhead‚ administrative‚ and marketing and selling cost. The rent would most likely be prorated
Premium Costs Variable cost Fixed cost
Joshua Annan Biology Section-04 Diffusion and Osmosis December 14‚2012 Alexis‚ Adiba‚ Elliot and Joey Purpose: The purpose of this lab is to get a better understanding of osmosis and diffusion in molecules. We will do this by studying different solutions and how they move through the permeable membrane. Hypothesis: The three different possible predictions were the lab were that the mass would stay the same‚ the mass will increase‚ or the mass will decrease
Premium Diffusion Osmosis Glucose
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
Premium Diffusion Molecular diffusion Osmosis
Diffusion Through Membranes IB Biology 11 Diffusion Through Membranes OBJECTIVES In this experiment‚ you will Use a Conductivity Probe to measure the ionic concentration of various solutions. Study the effect of concentration gradients on the rate of diffusion. Determine if the diffusion rate for a molecule is affected by the presence of a second molecule. BACKGROUND Diffusion is a process that allows ions or molecules
Free Molecular diffusion Diffusion Molecule
Effects of Osmosis and Diffusion The experimentation of last week’s lab was in order to test the many effects of diffusion and osmosis amongst four experiments. One such experiment was testing the effects of molecular weight on diffusion in relation to the use of Agar. The methods performed included the use of two acids‚ HCl and acetic acid. Both acids were placed into an Agar-filled dish and‚ over increments of 15 minutes‚ data collection was taken based off the diffusion rate and the diameter
Premium Diffusion Osmosis Molecular diffusion
Osmosis is the diffusion of a solvent across a selectively permeable membrane that occurs in response to differences in solute concentrations (Allen and Harper 2014).Osmosis can fall under the category of passive transport which does not require energy. With osmosis being a type of diffusion it is viewed as molecules moving from a high concentration to a low concentration. To further explain if there is a low water concentration‚ high amounts of solutes will be present. Water will most likely move
Premium Osmosis Concentration Water
Homework 2 Solution 1. Consider the diagram of the electronic system‚ which shows the probabilities of the system components operating properly. The entire system operates if assembly III and at least one of the components in each of assemblies I and II operates. Assume that the components of each assembly operate independently and that the assemblies operate independently. What is the probability that the entire system operates? 0.9 0.9 0.8 0.8 0.7 I II III 0.95 Solution: P = [1-(1-0.9)*(1-0
Premium Structural engineering Ural Mountains Fur
Chapter 2 Auditing IT Governance Controls Review Questions 1. What is IT governance? Response: IT governance is a relatively new subset of corporate governance that focuses on the management and assessment of strategic IT resources. 2. What are the objectives of IT governance? Response: The key objectives of IT governance are to reduce risk and ensure that investments in IT resources add value to the corporation. 3. What is distributed data processing? Response: Distributed
Premium Computer Internal control Backup
7-1‚ 7-2 Cell Structures and Function cell theory- all living things are composed of cells‚ cells are the basic units of structure and function in living things‚ new cells are produced from existing cells. prokaryote- smaller and simpler than eukaryotes‚ do not contain nuclei‚ are part of the Bacteria domain‚ are unicellular‚ are autotrophs or heterotrophs eukaryote- cells with nuclei and contain specialized structures called organells. All plants‚ animals and fungi are eukaryotes. Part of the
Premium Eukaryote DNA Bacteria