Effect of Exercise on Heart Rate. Aim: The aim of this experiment is to find out how different intensities of exercise effect the heart rate I will measure it in beats per minute using a polar heart rate monitor. Hypothesis: I predict that as I increase the intensity of the exercise I do‚ that my heart rate will increase. This is because as I exercise more intensely I will need more blood to my muscles to supply oxygen and take away carbon dioxide; therefore my heart is going to have to beat
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Osmosis Rates in Artificial Cells Daniel George Department of Biology Grand Valley State University 1 Campus Drive Allendale‚ MI 49401 georged@mail.gvsu.edu Abstract The lab for this paper was conducted for the topic of osmosis‚ the movement of water from high to low concentration. Five artificial cells were created‚ each being filled with different concentrated solutions of sucrose. These artificial cells were placed in hypertonic‚ hypotonic‚ or isotonic solutions for a period of 90
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Abstract: This lab tests how temperature and pH affect how enzymes will function. The lab showed that temperature will denature an enzyme when past its optimal working temperature and won’t denature in cold temperatures‚ but have slowed molecular activity. pH will also have an affect on an enzymes efficiency‚ when out of optimal pH the enzyme will not function as it is supposed to and if to far out of the optimal pH the enzyme will change shape and no longer work. Enzymes also showed to be reusable
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IB Chemistry Lab Report Design Example— Effect of Temperature on Solubility of Potassium Chloride in Water Research question How does temperature affect the solubility of potassium chloride in water? Hypothesis As the temperature of water increases‚ the particles of solid Potassium chloride‚ KCl‚ which are absorbing energy from its surrounding‚ start moving more easily between the solution and its solid state because. According to the second law of thermodynamics‚ the particles will
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biology sbi4uo-a | Osmosis and Diffusion Lab | By: Elora Hobbin | | Group Members : Ashley Riley-Roy and Adam Reynolds | 9/11/2012 | | Introduction: Osmosis and diffusion are two procedures that are critical for cell survival. Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. Osmosis is the movement of water molecules across a cell’s membrane. These two procedures help a cell to survive because they help maintain homestasis
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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 as a cell
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solution used. This would make both my results and conclusion invalid and unreliable. I also made sure that the temperature of the water bath was at the correct temperature and I kept on checking the temperature of both my amylase‚ and starch using a thermometer. I made sure both solutions were at the same temperature at all times throughout my experiments‚ so that temperature would not have an effect on my results. This would help me obtain more reliable and accurate results. Also‚ I made sure that I was
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The Effect of Molecular Weight on the Diffusion Rate in Substances Nadjah B. Hadji Amer Gladys A. Oliveros Rochelle R. Yaῆez Jan Remon B. Caliguid Group 2- Sec. W78-1 August 14‚ 2013 A scientific paper submitted in partial fulfilment of requirements in Biology 101.1 under Prof. Kimverly Hazel Coronel‚ 1st sem‚ 2013-2014 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using the agar-water gel test. The agar-water gel set up was composed of a six petri
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Demonstrating Osmosis in Potato Conclusion The data we had did not support the definition of Osmosis‚ Osmosis is the diffusion of water through a partially permeable membrane from a region of lower solute concentration to a region of higher solute concentration; the data we collected did not seem to fit into this. The potato chips were suppose to lose more mass in the higher concentrated solution as the water from the potato chip will flow out to the higher concentrated solution as the water inside
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experiment‚ one of the big is osmosis‚ and how it had the overall impact in this excitement a little on osmosis. Osmosis takes place when two solutions of different concentrations are separated by a semi-permeable membrane in which the solvent can pass through but not the solute. In our experiment‚ we used a sucrose solution that will be a hypotonic concentration of solute. This tells us that the solution has a lower concentration of water than does the cells. Therefore‚ due to osmosis‚ the cells will gain
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