Purpose: The purpose of this lab is to test the effects of osmosis on eggs in hypertonic solutions and hypotonic solutions. Hypothesis: If the corn syrup is a hypertonic solution‚ then the egg’s size will shrink. If the water is a hypotonic solution‚ then the egg will swell. Materials: Styrofoam cups (2 per group) Styrofoam cups to weigh down egg (2) Balance Paper towels Vinegar (enough to cover egg) Distilled water Corn syrup Fresh eggs (2 per group) Procedure: Day
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Michelle Hatton-Cowan Professor Micah Parker BHSR-115-01 16 March 2013 Putting the Pieces Together While recently putting a puzzle together with my family I realized that we had a very certain way of putting it together. We had the person who laid out all the pieces and was constantly looking for the ones that went together. Another person would carefully put pieces together that the first person had laid out and make sure there were no discrepancies. The last person would oversee everyone
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Cell Membrane Structure Phospholipids are arranged in to layers‚ called the bilayer. They only have 2 fatty acids‚ this is because the third fatty acid is replaced by a negatively charged phosphate group. The phosphate heads are polar‚ in other words attracted to water‚ therefore they are hydrophilic. The lipid tails are non-popular as they’re not attracted to water and therefore known as hydrophobic. When phospholipids are added to the water‚ they rearrange themselves so that the hydrophilic heads
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Lab 3 – Homework 1. Purpose of today’s experiment: To determine the effect osmotic pressure might have on cellular membranes‚ specifically when beet slices are placed in NaCl solutions of varying concentrations. 2. Hypothesis: The osmolarity will directly increase with increasing NaCl concentrations. 3. Control = Distilled Water – this was present in all solutions 4. The independent variable – salinity of the 6 solutions; while predetermined‚ the NaCl concentrations varied from 0% to 15%.
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Bacterial Energetics and Membranes Abstract The Mg2+/Ca2+ ATP synthase present in all bacterial membranes‚ particularly E. coli‚ couples ATP synthesis to the proton (H+) gradient produced by the ETC‚ a process known as oxidative phosphorylation. The gradient acts to power the ATPase‚ so that it may phosphorylate ADP to produce ATP. The reverse reaction of this process‚ or hydrolysis of ATP into ADP and Pi‚ may be used to observe ATPase activity when the resulting Pi is quantitatively measured
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Mulvaney Lab 5: The Integumentary System Purpose: The purpose of this experiment is to understand The Integumentary System. Hypothesis: If I understand the skin‚ the appendages of skin‚ and diease of the skin‚ then I will be able to fully understand The Integumentary System. Materials: Marieb‚ Elaine. Hoehn‚ Katja. Human Anatomy & Physiology. Pearson. 2013. Print Methods: The skin‚ appendages of the skin‚ and disease of the skin. Results: BSC 2085C – Anatomy & Physiology I Lab 5: The Integumentary
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1 ECOR 1010 – Introduction to Engineering amr shehadah Assignment #5 Assignment Title: Univariate Data TO Marking TA: Name: Omer foaud Email: omerfoaud@cmail.carleton.ca Room: ME2256 – Carleton University FROM: Email: amrshehadah@carleton.ca Student Number: 100903516 Number of Figures and Tables: 1 Figure and 3 Tables Last Date and Time of Revision: 06 November 2012 Introduction This report will analyse and discuss 45 given sizes of a dimension on a knob. A
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thunderstorm that produces a category F-5 tornado. C.a thunderstorm that produces several tornadoes. D.a thunderstorm that lasts for several hours which is a rotating. Answer Key: D Question 4 of 10 10.0/ 10.0 Points Thunderstorms that form over an area randomly and only last for approximately an hour are called: A.a multicell thunderstorm. B.mature thunderstorms. C.a thunderstorm cluster. D.ordinary thunderstorms. Answer Key: D Question 5 of 10 10.0/ 10.0 Points The leading edge
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The Semipermeability of Cell Membrane to Different Osmotic Environments Using Dialyzing Bag Model1 Sittie Johaynnah M. Sambarani Group 3 Sec. I-1L December 17‚ 2012 ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- 1 A scientific paper in partial fulfillment of the requirements in Biology 10 Laboratory under Professor Junaldo
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Introduction In this Lab the students dealt with Osmosis‚ movement of water molecule or solvent from a high concentration to a low concentration‚ through selective permeability‚ a protective barrier that provide some particle the ’direct ’ passage in and out of the plasma membrane ( Lacerda L.2011) Allowing some molecules enter and exit the cell membrane‚ to create a balance in concentration inside and outside of the cell‚ by doing so the cell often become hypotonic‚ where the concentration
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