Lab report OSMOSIS TROUGH A SELECTIVELY PERMEABLE MEMBRANE Introduction: Molecules have kinetic energy. This causes the molecules of the cell to move around and bump into each other. Osmosis is a special kind of diffusion where water moves through a selectively permeable membrane (a membrane that only allows certain molecules to diffuse though). Diffusion or osmosis occurs until dynamic equilibrium has been reached. This is the point where the concentrations in both areas are equal and no
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Biology – HSC Online Extract from Biology Stage 6 Syllabus (Amended October 2002) © Board of Studies‚ NSW 9.2 Maintaining a balance: 1. Temperature range Background: All organisms are adapted to a particular environment with its characteristic temperature range. The temperature range allows the organism’s enzymes to control its metabolism by operating at their optimum efficiency within this range. Some organisms are adapted to live at high temperatures (80 - 100oC) and these are called thermophiles
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discs are placed into 2 plungers and placed under a lamp the CO2 rate will speed up the process of photosynthesis. Materials: -Fluorescent lamp - Hole punch - 1 Sharpie marker -20 leaf discs -Syringes -12 mL cups Data Table Start 2 4 6 8 10 12 14 16 18 20 High (Bakin g Soda) 1 2 4 4 5 6 6 7 9 9 Low (Water ) 0 0 0 1 2 2 2 3 3 4 Analysis: By increasing the CO2 concentration it will increase the rate of photosynthesis until other factors become limited. 2. The reason
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Chapter 1 Chemistry and Measurements Chemistry & Chemicals Study Plan Units of Measurement 4. Scientific Notation 5. Measured Numbers & Significant Figures 6. Significant Figures & Calculations 7. Prefixes & Equalities 8. Conversion Factors 9. Problem Solving 10. Density 1. 2. 3. General‚ Organic‚ and Biological Chemistry Fourth Edition Karen Timberlake Chapter 1 Chemistry and Measurements 1.1 Chemistry and Chemicals © 2013 Pearson Education‚ Inc. Lectures Chemistry Chemistry
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GCE Examinations from 2009 First AS Award: Summer 2009 First A Level Award: Summer 2010 Biology GCE AS and A BIOLOGY 1 Contents WJEC AS GCE in Biology WJEC A Level GCE in Biology 2009 & 2010 First AS Award - Summer 2009 First A level Award - Summer 2010 Page Entry Codes and Availability of Units 2 Summary of Assessment 3 Introduction 5 Aims 9 Assessment Objectives 10 Specification Content 11 Scheme of Assessment 26 Key Skills 31
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icJohn Melvin Mateo BS AT - 1A NSCI 121 Assignment no.1 (Finals) 1.)What is Osmosis? Osmosis is the diffusion of the movement of water from a region of higher concentration to a region of lower concentration through a cell membrane or other semi-permeable membrane until an equilibrium is reached. It is a special case of diffusion (passive transport). Basic Explanation : Osmosis can occur when there is a partially permeable membrane‚ such
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______________________________ Week 1 Lab Goals: 1. Choose your lab group. 2. Learn about lab safety. **IMPORTANT – All students are expected to wear a lab coat and goggles in lab at ALL times. As well‚ you are not permitted to wear shorts or open-toed shoes. If you are not dressed appropriately for lab‚ your TA will dismiss you. You are permitted to return to lab with proper attire and equipment‚ but the rules for lateness will apply (see the syllabus). If you do not return to lab with proper attire and
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Apparatus: This is the list where you include everything you are going to use. Make sure you don’t forget anything. My teacher always told me to include a diagram of the apparatus‚ so you may want to add that too. When listing the apparatus‚ be specific: 1)’A beaker’ wont work‚ you have to specify the type and the volume. Same for any other apparatus of this sort. 2)When listing chemical substances like enzymes or starch solutions. Include the volume and the concentration. 3)For Solid substances used
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Cited: * -Shefferly‚ Nancy. University of Alabama BSC 117 Laboratory Manual Spring 2010. Tuscaloosa‚ AL: Shefferly‚ 2010. * -Cambell‚ Neil‚ Jane Reece‚ Lisa Urry‚ Michael Cane‚ Steven Wasserman‚ Peter Minorsky‚ and Robert Jackson. Biology. 8th ed. San Francisco‚ CA: Benjamin Cummings Inc.‚ 2008. * Curds‚ C.R.‚ Cockburn‚ A. 1968. Studies on the Growth and Feeding of Tetrahymena pyriformis in Axenic and Monoxenic Culture. Journal of General Microbiology 54:343-358.
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Using Figure 12.1‚ match the following: 1) Afferent impulses from all senses and all parts of the body converge here and synapse with at least one of its nuclei. Answer: D Diff: 1 Page Ref: 444; Fig. 12.11 2) Putamen. Answer: C Diff: 1 Page Ref: 443; Fig. 12.11 3) Anterior horn of lateral ventricle. Answer: A Diff: 1 Page Ref: 434; Fig. 12.11 4) Inferior horn of lateral ventricle. Answer: E Diff: 1 Page Ref: 434; Fig. 12.11 5) Part of the basal nuclei
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