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
purpose of this experiment is to determine whether or not caffeine has an affect on the heart rate of DaphniaHypothesisThe Daphnia heart rate will increase with the concentration of caffeine. I based my hypothesis on the fact that humans heart rates increase with caffeine as it acts as a stimulant drug. In the experiment there will be several variables that I need to try and control‚ the temperature of the water is one of these because if the temperature is higher or lower on the day the results may
Premium Heart rate
Diving and Heart Rate Prelab Questions: 1.) If the peripheral blood vessels were constricted without making any other further adjustments in the cardiovascular system then the blood vessels could potentially burst due to the built up pressure and no further decrease in heart rate. The vessels would be smaller due to the constriction but the heart would continue to pump the blood with the same or greater force. The dive response prevents this from happening because it lowers the heart rate so that
Premium Heart Blood Cardiology
The Affect of Water Temperature on Goldfish Breathing Rate Carlos Vega Vanessa Santamaria Rasa Hodges 9/12/2013 Introduction The main objective of our lab was to see how temperature affects the breathing patterns of an Ectothermic animal. Ectothermic is the same thing as cold-blooded. It means that the animal‚ in this case a goldfish (Carassius Aauratus)‚ does not produce its own heat internally so the animals temperature depends on the temperature of its surroundings. So
Premium Energy Temperature Heat
the 10-12 year old subject’s heart rate read 83 beats per minute (bpm). After doing jumping jacks the 10-12 year old subject’s heart rate read 96 bpm‚ that is a difference of 13 bpm. Before doing jogging‚ the 10-12 year old subject’s heart rate read 82 bpm. But after doing jogging for two minutes‚ the 10-12 year old subject’s heart rate read 92 bpm‚ that is a difference of 10 bpm. As it is shown in my data table‚ before doing sit-ups the 10-12 year old subject’s heart rate read 72 bpm. After doing sit-ups
Premium Heart rate Exercise Person
I. Title – The Effect of Volume on Heart Rate II. Problem/Research question – Your heart rate can be affected and changed using a variety of things. One thing that can cause your heart rate to change is the volume of audio. How does the volume of an audio track affect your heart rate? If the volume of an audio track is increased‚ the number of hearts beats per minute will increase as well. III. Variables – ❖ Independent Variable ➢ The volume of the audio track ❖ Dependent
Premium Heart rate Nervous system
Exercise affects all people differently‚ specifically a person’s heart rate and blood pressure. After exercising your heart rate should increase and your blood pressure should decrease (Blood Pressure Association‚ 2008). The purpose of this lab was to determine which level of exercise would have the greatest impact on affected pulse and blood pressure. In this lab we tested how exercise affected heart rate by testing a random group of people with different body types and exercise levels to see how
Premium Heart Obesity Muscle
what they actually do to you? The experiment that will be conducted will answer this question: How does playing video games affect your heart rate? If playing video games causes your heart to beat faster‚ then they can help someone who has an abnormally slow heart rate. This experiment may help people with heart rate problems to increase/decrease their heart rate. (whatever the results of the tests are). A lot of people think that video games are bad for you‚ but this experiment could change their
Premium Video game Video game controversy Nonviolent video game
Lab 1: Heart Rate Lab (Revised Fall 2010) Lab 1. Heart Rate‚ Physical Fitness‚ and the Scientific Method Prelab Assignment Before coming to lab read carefully the following pages on the scientific method and then answer the prelab questions at the end of this lab handout. Be prepared to discuss and/or hand in your responses to the prelab questions at the start of lab. Introduction Biology is a dynamic field of study whose aim is to unravel the mysteries of life itself. Throughout history‚ humans
Premium Cardiology Blood Artery
the heart rate to slow and blood vessels to dilate‚ which then leads to blood pools in the lower body and less blood going up to the brain. c. Compensatory mechanism that become activated include; increase sympathetic outflow leading to arteriolar vasoconstriction‚ venoconstriction‚ and increase in heart rate; d. Increase pressure in the aortic arch will activate the aortic arch reflex and cause increased parasympathetic stimulation of the heart.
Premium Blood Heart Hypertension