Name: Joie Vincent R. Dagohoy Date performed: 07-01-13 Student Number: 2009-33281 Date submitted: 07-08-13 Exercise 2 Formulation, Testing of Hypothesis, and Experimental Design I. Objectives: a. to define diffusion and demonstrate this process in gases b. to cite molecular weight and time as two factors affecting the rate of diffusion c. to formulate a hypothesis on the relationship of each of these factors on the rate of diffusion d. to conduct and experiment
Mindanao State University-Iligan Institute of Technology College of Science and Mathematics Department of Biological Sciences In partial fulfillment of : BIOLOGY 101.1 (Scientific Paper on Diffusion) Submitted by : Diate, Kim P. (B.S.E Gen.Sci.1) Submitted to : Olive S. Anies, Ph.D ABSTRACT This scientific paper investigates my hypothesis that "Higher molecular weight produce faster diffusion". Diffusion is a process of equalization which involves movement
Purpose The purpose of performing part I of this lab was to study the relationship between surface area/volume with regard to rate of diffusion. We used treated agar blocks to model artificial cells because their surface area and volume could be easily measured, and they visually show the amount of diffusion. By using blocks of different sizes (and with different SA: V ratios, we can compare the rate that diffusion occurred for each block. Background Information All molecules are constantly in motion
Every living thing is made up of cells. Many cells differ in size or shape and have different functions that they are required to carry out to sustain life. A structural feature in cells is the plasma membrane, which surrounds the cell and protects it from anything dangerous around it. The plasma membrane is able to do this because it is selectively permeable. This means that the plasma membrane decides what comes in and goes out of the cell. This allows it to keep the important nutrients it needs
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
ACTIVITY 1: Simulating Dialysis (Simple Diffusion) Answers 1. The molecular weight of urea is approximately 60. Which of the membranes can it pass through? a. 50 MWCO membrane b. 100 MWCO membrane c. 200 MWCO membrane d. Both the 100 and 200 MWCO membranes D. Both the 100 and 200 MWCO membranes 2. True or False: A solution containing glucose will diffuse faster through a 200 MWCO membrane if it is heated. True 3. The molecular weight of carbon C is 12; the molecular weight of hydrogen
Group Description The group is made up of fourteen new nurses, four nurses with one year of experience, and the group is led by one of the nursing educators at Adventist Health Medical Center in Hanford. The primary purpose of these meetings is to provide new nurses with ongoing support during the transition period from student to nurse. Although this is the primary purpose of these groups, group members use this time to discuss policies and procedures that need to be updated and or clarified, discuss
Osmosis and diffusion are two important processes in the human body that help in the functioning of cells and homeostasis, or maintaining balance within the body. Osmosis is the movement of water from a higher concentration to a lower concentration, and its purpose is to maintain stability between a solvent (water) and a solute. Diffusion is the movement of solutes down their concentration gradient, toward a lesser concentration of solutes, in order to pass a membrane, such as the lipid bilayer of
The aim of this experiment is to observe and record the rate of the blue water in the dialysis tube diffusing into the beaker containing different concentrations of salt over 20 minutes to see what effect the concentrations of salt has on the rate of diffusion. The hypothesized of this experiment is that the blue water in dialysis tube 3 will have a faster rate of blue dye diffusing into the salt water in beaker 3. Beaker 1 will have the slowest rate of blue dye diffusing from the dialysis tube into
An excessive amount of asphaltene deposition may result in a severe formation damage and sometimes blocking the flow path as seen in Figure 6c. Therefore, the injected solvent cannot further diffuse deep into the matrix (due severe to asphaltene deposition) and eventually causes injectivity problem. In this study, C5 injection resulted in the high amount of asphaltene deposition in porous media (11.4 % per Figure 7) and it could block the main flow path, the fracture (as seen in Figure 6c). The pressure