Lab Report 1: Cell Transport Mechanisms and Permeability Using PhysioEx 8.0 Introduction The purpose of these experiments is to examine the driving force behind the movement of substances across a selective or semiperpeable plasma membrane. Experiment simulations examine substances that move passively through a semipermeable membrane‚ and those that require active transport. Those that move passively through the membrane will do so in these simulations by facilitated
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Simple Diffusion 1. The following refer to Activity 1: Simulating Dialysis (Simple Diffusion). Which solute(s) were able to pass through the 20 MWCO membrane? According to your results‚ which solute had the highest molecular weight? ______________________________________ Which solute displayed the highest rate of diffusion through the 200 MWCO membrane? __________________________ Using the data from Chart 1‚ explain the relationship between the rate of diffusion and the size of the solute. Facilitated
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1a. Two reasons that the mass of the bag levels off with time include (1) equilibrium and (2) hydrostatic pressure. Equilibrium refers to the concentrations becoming equal. If there is no longer a higher concentration and lower concentration between the water and sucrose‚ osmosis can no longer take place. Osmosis can only occur when water is traveling from a higher concentrated area to a lower concentrated area. Hydrostatic pressure occurs when the bag reaches maximum capacity. Water will enter the
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The effect of temperature on the cell membranes of beetroot cells and amount of pigment released. Apparatus • Corer size 4 • White tile • A Beetroot • Automatic Water Bath • Segregated knife • A thermometer • Stopwatch Method: • First take the white tile and the corer. Then collect a cylinder of beetroot by pushing the corer into the beetroot and withdrawing it. The cylinder remains inside the corer- so push it out with the end of a pencil. • Collect 3 cylinders
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Module 01 Lab Worksheet: General Review Introduction This week’s lab will focus on reviewing the concepts of anatomical terminology‚ metric conversion and genetics‚ specifically the concept of dominant and recessive alleles in a human pedigree. Objectives Objectives for this week’s lab include: 1) Review anatomical terminology‚ 2) Demonstrate metric conversion knowledge‚ and 3) Review the concepts of genetic inheritance and demonstrate knowledge of the inheritance patterns of dominant and recessive
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variation in temperature on the permeability of cell membranes using fresh beetroot Aims In this investigation‚ you will subject fresh‚ washed beetroot discs to different temperatures to investigate the effect of temperature on the permeability of the plasma membrane. Overview The beetroot discs will be placed in distilled water at different temperatures. You will compare the intensity of the beetroot pigment that has leaked out from the cells subjectively and possibly objectively using a colorimeter
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Experiment 2 : Transport Across Membrane Name : Umi Adiba Anis Binti Che Hamid Matrix Number : CPM0147_2013B Batch : Pre-Med May Intake 2013 Group : E Date : 19.06.2013 Lecturer’s Name : Miss Nurul Izziani Objectives : I. To study the effects of hypotonic‚ hypertonic‚ and isotonic solutions on plant and animal cells. Experiment 1 : Introduction : The purpose of doing this experiment is to investigate the effects of hypotonic‚ hypertonic‚ and isotonic solutions on plant cell. Particularly
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a) Using a human cell of your choice‚ describe how organelles work together to make and secrete a protein (LO1. AC 1.1) An epithelial cell in the thyroid gland‚ called a thyrocyte forms spherical follicles that produce a protein called thyroglobulin. This is a globular protein that has a functional role in metabolism. The protein is used by the thyroid gland to produce thyroid hormones; thyroxine (T4) is an example of one of the hormones created. Thyroxine is formed by iodine binding to tyrosine
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Content Frame PhysioEx 9.0 PhysioEx 9.0 is easy-to-use laboratory simulation software that consists of 12 exercises containing 63 physiology lab activities. Exercise 1: Cell Transport Mechanisms and PermeabilityDownload the Exercise 1 Review Sheet:PDF Download Exercise 1 Review Sheet PDFRTF Download Exercise 1 Review Sheet RTF Exercise 2: Skeletal Muscle PhysiologyDownload the Exercise 2 Review Sheet:PDF Download Exercise 2 Review Sheet PDFRTF Download Exercise 2 Review Sheet RTF
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Membrane Functions: Aim: To demonstrate the process of osmosis using a chicken’s egg Hypothesis: I predict that the egg’s mass after 10 min. in the 5% salt solution would increase due to and balancing out the solution. In the 10% salt solution‚ the egg’s mass would decrease since there is a high amount of salt. In the dilute water solution‚ the egg’s mass will increase‚ as the membrane would take in that water. Materials: 1- One fresh egg 2- One plastic spoon 3- One plastic fork
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