"The effect of exercise on heart rate and breathing rate" Essays and Research Papers

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    The effect of temperature on a reaction rate In this experiment I shall be investigating how temperature affects the rate of reaction Rates of reaction The Factors that affect the rate of reaction are temperature‚ surface area‚ concentration‚ catalysts‚ light and pressure Surface area – Surface area is the amount of solid surface that is available for reaction - Only affects solids so this will not affect our

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    Practical: The Effect of Concentration on Reaction Rate Aim: To use a simple reaction between sodium thiosulphate and hydrochloric acid to discover concentration this determines how fast chemical reactions occur. Independent Variable: Concentration of hydrochloric acid (%) Dependent Variable: Time taken for chemical reaction to take place (sec) Hypothesis: My prediction is that the increased concentration of the thiosulfate will in turn lead to an increase in the rate of reaction. This

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    initial rate of reaction. I will measure the effect of the enzyme in 5 different concentrations against the controlled variable of the reactant. The enzyme which will be used is different concentrations of potato and the reactant used will be Hydrogen Peroxide. Hydrogen Peroxide which will be the buffer solution is a PH of 7.2. My hypothesis for the experiment is that as the concentration of the enzyme is increased the rate of reaction will be increased‚ producing oxygen at a faster rate. The results

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    All children are unique and develop at their own rate but they tend to follow a similar pattern. There are a number of areas of development like‚ Physical‚ communication‚ Social‚ emotional‚ behavioural‚ Intellectual and moral development. Development is very rapid in the early years of a child’s life and tends to slow down the older they get. Moral development is usually adapted from the setting a child lives and would usually deem something wrong and right‚ based on what their parents believe is

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    purpose of this practical is to investigate how the pulse rate of humans changes when they exercise. Someone who is physically fit can supply their muscles with enough blood‚ carrying glucose and oxygen‚ for an activity at a lower heart and breathing rate. The fitter you are the lower your resting heart rate. You and your classmates will be the humans investigated. SAFETY: If you know you have any condition that affects you doing exercise‚ please make sure your teacher knows before you start the

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    Brooke Strowd AP Biology Ms. Butler 28 January 2013 I. Title: Effect of a Catalyst on Reaction Rate II. Introduction: The basis of the experiment is the enzyme; an enzyme is a biological molecule that acts as a highly selective catalyst. By combining with a substrate‚ an enzyme is able to create a new product that helps the body function. (Ex. Lactose/Lactase) A substrate is a molecule an enzyme acts upon‚ the two combine at an area called an active site. This active site allows induced fit

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    The Effect of Caffeine 1% and 2% on Daphnia magna’s Heart Rate Abstract: Ectothermic animals are animals whose body temperature is affected by their surroundings. This means that if the environment is cold the animal will be cold. If the environment is warm the animal will be warm. This is because the animal doesn’t have the capability of regulating its body systems to keep a constant body temperature. When an ectothermic animal is cold‚ its heart rate will lower. When

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    number of sit-ups affect your heart rate. Independent Variable (IV): Number of sit-ups ( 0‚5‚10‚15‚20). I chose these 5 increments because they are consistent numbers in which everyone can participate without it being to much. Dependent Variable: heart rate( BPM) +/- 4 ( number of beats in 15 seconds multiplied by 4). Materials: timer‚ flat surface‚ movable clothing Background: In this experiment I will test your heart rate and if it increases or decreases with exercise (sit-ups). This is important

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    Conflicting Claims About the Effect of Exercise on the Rate of Clothespin Squeezing * Hypothesis: If a person does not exercise before to squeeze a clothespin‚ then they will be able to squeeze the clothespin more times in a minute than if they do exercise first. Without exercise the person will have more energy to squeeze the clothespin more times than the other who exercises first and might get tired more rapidly. * Materials: * Clothespin * Stop watch * Pen or Pencil

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    electronic fetal monitor (EFM)‚ category II fetal heart rate (FHR) Huddle Up for Fetal Safety: Strategies to Improve Outcomes In the mid-1990s‚ the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) sponsored a series of workshops to standardize definitions of electronic fetal monitoring (EFM) fetal heart rate (FHR) characteristics. The common language they developed to describe fetal heart rate tracing patterns‚ which provide important information

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