OBSERVING WAVE PULSES - EXPERIMENT 15 PART 1 - Transverse Wave Pulses Q1 - As the pulse travels down through the spring‚ its‚ size and amplitude is reduced - the sizes of the waves are much smaller as the forces become weaker (losing energy) as the distance from the point of initiation is increased. Q2 - Pulses do not ’catch up’ with one another in transverse waves. They either meet at a certain point momentarily or pass through each other and continue on their way as if nothing has happened.
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Unit 10: Blood/Immunology Case Study Lab What were your three diagnoses? Case 1: Bacterial or viral infection Case 2: Normal blood smear Case 3: Normal blood smear Journal Questions for lab In what ways do normal red and white blood cells differ? White blood cells have a nucleus‚ red blood cells do not‚ white blood cells protect while red blood cells transport‚ red blood cells have a longer life span than white blood cells. Which type of white blood cell would you
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High Blood Pressure and How it affects Family Members INTRODUCTION High Blood Pressure occurs when there is high pressure in the arteries and the blood vessels are narrow or stiff‚ which makes the heart pumps harder to get blood through the rest of the body. High Blood Pressure is a health issue that many people today are forced to live with. It is a condition that is increasing more and more each day. There is approximately about 1 in every 3 adults in the United States‚ which has been estimated
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Lab Report Diffusion is - One of two kinds of passive transport‚ - Diffusion can transport ions from higher concentration to lower concentration region without any other forces. - A net movement of molecules in and out of cell membrane - Diffusion can be affected by the steepness of the concentration gradient. Lab question: Is the rate of diffusion influenced by the presence of second molecule? Prediction: the rate of diffusion is influenced by the presence of second molecule
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Investigating the effect of coffee on the heart rate of daphnia Aim: To find out the effect of different caffeine concentrations on heart rate in daphnia Independent variable: • Caffeine concentration Dependent variable: • Daphnia heart rate Controlled variables: • Size of daphnia • Habitat from which the daphnia is obtained • Temperature of the surrounding How the variables can be controlled: • Equally sized daphnia should be used in the experiment • All daphnia should be collected
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Unknown Lab Report Microbiology Unknown A Sonia Kabra November 26‚ 2014 Introduction There are numerous reasons for identifying unknown bacteria. Some of these organisms have distinct qualities that set them apart from one another‚ such as the exposure to certain environments. Through out the semester in the laboratory‚ we are able to encounter some of the few microorganisms that we as humans have come into contact with. With the knowledge gained from the sessions in the laboratory‚ we can now
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Osmosis is a passive movement of water through a selectively permeable membrane moves from an area of higher concentration to an area of lower concentration. In this lab‚ we can determine the direction of diffusion of small molecules by measuring the diffusion of small molecules through dialysis tubing. This tubing acts as a selectively permeable membrane‚ and allow to pass larger molecules slowly. Introduction: Cells have kinetic energy and it causes the molecules of the cell to move around
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Adrenaline on the Heart Rate of Daphnia magna Hieu Duong 6 April 2011 Introduction The heart is a muscular organ that constantly pumps blood throughout the human body. The continuous flow of blood creates a system for vital organs within the body to gain oxygen and nutrients. The timely delivery of oxygen to the body’s organs is very crucial. Brain cells‚ for example‚ will die within minutes if the flow of oxygen is obstructed. For the blood to be pumped out of the heart and into the body
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BIOLOGY LAB REPORT (UNIT 7: ENZYMES) GENERAL Enzymes are protein that acts as catalyst‚ lowering the activation energy need for reactions to progress in cells. The reaction can still occur without the presence of the enzyme‚ but at a much slower rate. The activation energy is the minimum amount of energy need for a chemical reaction to occur‚ yielding from a given set of reactants. In enzymatic reactions‚ we have substrates which are reactants of reaction bound to an enzyme. While an active site
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Meiossis and Genetic Diversity in Sordaria Meiosis and Genetic Diversity in the Model Organism‚ Sordaria. By: Katie Fiorillo BIO110 Lab TA: Lauren Smith October 30‚ 2012 A. INTRODUCTION: In this lab‚ the organism Sordaria fimicola was used to explore factors contributing to genetic evolution of sexual reproduction. These organisms are found in “Evolution Canyons‚” which occur when two mountain slopes with very different climatic conditions congregate with a comparatively small valley
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