"Activity 3 examining the effect of temperature on heart rate" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 5 of 50 - About 500 Essays
  • Good Essays

    The Effects of Caffeine on the Heart Rate of Daphnia This lab was designed to show how caffeine affected the heart rate of daphnia after exposing them to different concentrations of caffeine for ten minutes. Caffeine is a stimulant‚ which‚ in humans‚ causes heart rates and blood pressure to increase. Its effects range from mild alertness to heightened anxiety and body tension. We wanted to see if caffeine affected the daphnia’s heart rate in the same way. We filled three containers with three different

    Premium Heart rate Caffeine

    • 485 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Investigate the effect of on exercise on the heart rate. Aim: To find out if there is any relevant link between the amounts of exercise taken to increase a person heart rate. Equipment needed: Stop watch Screen volunteer P.E kit Calculator Record sheet Type of exercise: skip for few minutes ‚ then break in between and again repeat it once or twice. Method: First of all‚ we needed to take the resting heart rate of the person who is about to skip. Then‚ with the stopwatch one

    Premium Heart rate

    • 880 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Review: Heart Rate

    • 3460 Words
    • 14 Pages

    explain the statement‚ “Cardiac muscle has an intrinsic ability to beat.” 3. To compare the relative length of the refractory period of cardiac muscle with that of skeletal muscle‚ and to explain why it is not possible to tetanize cardiac muscle. 4. To define extrasystole‚ and to explain at what point in the cardiac cycle (and on an ECG tracing) an extrasystole can be induced. 5. To describe the effect of the following on heart rate: vagal stimulation‚ cold‚ heat‚ pilocarpine‚ atropine‚ epinephrine‚ digitalis

    Premium Heart Muscle Acetylcholine

    • 3460 Words
    • 14 Pages
    Good Essays
  • Better Essays

    Introduction: The purpose of this experiment is to measure the effects of changes in temperatures and pH on enzyme activity in skeletal muscle‚ particularly the activity of lactate dehydrogenase (LDH). LDH is a glycolytic enzyme which converts pyruvate to lactate in the following equation: LDH Pyruvate+ NADH ------------ Lactate + NAD The reaction above can move in both directions‚

    Premium Enzyme

    • 1735 Words
    • 7 Pages
    Better Essays
  • Better Essays

    The Effects of Temperature‚ Acetylcholine‚ and 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

    Premium Heart Blood Circulatory system

    • 2136 Words
    • 9 Pages
    Better Essays
  • Better Essays

    LABORATORY 3 The Effect of Temperature on the Rate of PNPP Hydrolysis Partners: Shelby Cruickshanks Alexis Williamson Introduction Most of the chemical reactions‚ which occur throughout our bodies‚ would proceed at a much slower rate of reaction without the presence of an enzyme. Cells can not wait for centuries for molecules to break down‚ if they waited for that‚ there would be no way for the organism to obtain energy or in turn survive. This is where biological catalyst comes into

    Premium Enzyme Chemical reaction Catalysis

    • 1524 Words
    • 7 Pages
    Better Essays
  • Good Essays

    Amylopectin The absorbance value(x) read from cuvette containing starch and water represents the total amount of starch-iodine complex. The absorbance value(y) read from cuvette containing starch‚ water and α-amylase at the respective temperature or pH represents the amount of starch-iodine complex which is left after the enzyme has hydrolyzed the starch.In order to get the amount of product;P (maltose and glucose) formed‚ need to subtract the (y) value from the (x) value.

    Premium Enzyme PH Starch

    • 1379 Words
    • 6 Pages
    Good Essays
  • Better Essays

    Science IA Rough Draft The Effect of Temperature on The Activity of The Enzyme Catalase Introductions: Enzmyes are proteins that catalyze chemical reactions. All living things have catalase present in them. Catalase is a common  HYPERLINK "http://en.wikipedia.org/wiki/Enzyme" enzyme found in nearly all living organisms that are exposed to oxygen‚ where it  HYPERLINK "http://en.wikipedia.org/wiki/Catalyst" catalyzes the decomposition of  HYPERLINK "http://en.wikipedia.org/wiki/Hydrogen_peroxide"

    Premium

    • 1230 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Investigating the effects of Caffeine on the heart rate of Daphnia Shrimp. Aim: In this experiment we are trying to find out how varying the concentration of caffeine can affect the heart rate of Daphnia shrimp. Prediction: I predict that caffeine will increase the heart rate of the shrimp . Introduction: I believe the results will comply with my prediction. Caffeine is a compound found in especially tea and coffee plants and acts as a natural pesticide. Caffeine is a central nervous system

    Free Caffeine Coffee

    • 1086 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    Problem Question: * What effect does temperature have on the rate of Diffusion? Hypothesis: If we put the antacid in hot water‚ then it will dissolve faster than in cold water or room temperature water. Material List: * One thermometer * 3 beakers (of the same size) * 3 antacid tablets * Cup of ice * Hot plate * Paper towels * Water Procedures: Step 1: Gather materials Step 2: Label the beaker #1‚ #2‚ and #3 Step 3: Fill each beaker with the same amount of

    Premium

    • 362 Words
    • 2 Pages
    Satisfactory Essays
Page 1 2 3 4 5 6 7 8 9 50