TITLE: Effect of the caffeine on the heart rate OBJECTIVE: To investigate the effect of the caffeine on the heart rate of living organisms. INTRODUCTION: * Daphnia Daphnia are small‚ planktonic crustaceans‚ between 0.2 and 5 mm in length. Daphnia are members of the order Cladocera‚ and are one of the several small aquatic crustaceans commonly called water fleas because of their saltatory swimming style (although fleas are insects and thus only very distantly related). They
Premium Caffeine Blood Coffee
boys heart rates rose slightly with light exercise (walking)‚ and then fell again slightly back towards the original resting point. Then during the period of anticipation of exercise the males heart rate rose by a further 1 beat per 6 seconds‚ whereas the females took a dramatic leap‚ and rose by 3.5 beats per 6 seconds‚ or 35 beats per minute. Then for the exercise period the males rose by nearly 4 beats per 6 seconds‚ or 40 beats per minute. Whereas the females heart rate only rose by 3 beats per
Premium Heart rate Oxygen Muscle
Measurement of Heart Rate for Autonomic Nervous System Abstract: The Autonomic Nervous System lab was designed to measure reaction times by using a variety of tests that affect the heart rate. These tests were the startle‚ stroop‚ Valsalva maneuver‚ diving reflex‚ and a test of our choice. The test our group chose to measure the heart rate in response to doing a trust fall to anticipate the stress right before the fall. To begin this lab we chose a participant‚ and then hooked their finger
Premium Parasympathetic nervous system Autonomic nervous system Peripheral nervous system
LAB REPORT FORMAT Title: Provide a title that is a description of your lab followed by a lab number. The title should clearly identify the experiment’s variables (independent & dependent) Purpose/Problem: This is the place to explain what you are trying to find out or what you are going to do in the lab. Include information about the variables involved. Hypothesis: “If………then………because………” This is a cause/effect statement. This is a prediction of what the expected outcome of
Premium Heart rate
Introduction In this experiment I aim to find out if caffeine has an effect on the heart rate of daphnia. Daphnia are water fleas that have a sort of heart that we can see in magnification. We can count the number of heart beats in a minute of a regular daphnia and try and get a new one with the same specifications as the old one that may have died. It is also a good idea to get a new one as we want to see how much it affects it from ordinary instead of adding the caffeine one after another
Premium Heart rate Beat Generation
caffeine on heart rate. Daphnia was placed on a clean deep well slide. This was placed under the microscope and brought into focus on the best objective and light contrast. The heart rate was observed and counted within 15seconds and recorded on a table. Introduction Daphnia magna is a fresh water ectothermic crustacean commonly referred to as water flea. Because of its transparency we can observe the effects of substances on its body without surgical procedures. We can observe the heart rate of daphnia
Premium Heart rate Heart Attention-deficit hyperactivity disorder
Temperature and Epinephrine on The Heart Rate of Daphnia Leslie Orzetti-Gollhofer Gaby Macias INTRODUCTION The Daphnia is a Crustacean other known as the water flea. It lives in small bodies of freshwater. The Daphnia is ectothermic‚ meaning it controls its body temperature through external means. With this experiment we experienced first hand what the effect temperature has on a Daphnia’s heart rate. We also experimented what effect epinephrine has on a Daphnia’s heart rate. HYPOTHESIS If we add hot
Premium Hypothesis Epinephrine Heart rate
Tachycardia Condition The normality of the heart beats rate is of sixty to one hundred beats a minute at rest. A rate that is faster than 100 beats a minute in adults is called tachycardia. People experience transient heart beats‚ called sinus tachycardia‚ as a normal reaction to some type of excitement‚ anxiety‚ stress‚ or just exercise. There are two other types of tachycardia and those are named supraventricular tachycardia and ventricular tachycardia. The condition of tachycardia is caused
Premium Cardiology Heart rate Heart
the base heart rate of each water flea. The base heart rate is the control in my experiment. The variables in the experiment are alcohol and caffeine. After finding the control of the first flea I will surround it with alcohol. The second flea will go through the same process as the first flea did‚ except the variable will be caffeine. The purpose of these two experiments is to see how surrounding one water flea with alcohol and another with caffeine affects each water flea’s heart rate. I believe
Premium Heart rate Caffeine
What happened to the R-R interval and heart rate after exercise? After exercise the R-R interval increased steadily from 0.48 to 0.68 seconds‚ while the heart rate BPM decreased steadily from 123 to 76; both trending back towards the resting values. What happened to the T-P interval during exercise? Outline what this means for ventricular filling time. During exercise there was a significant drop in the T-P interval which then steadily increased when exercise was completed. The T-P interval represents
Premium Heart Artery Blood