Does Caffeine Affect Heart Rate - 1121 Words

Does caffeine affect heart rate? Introduction The purpose of this experiment was to see if caffeine had an effect on the heart rate of Daphnia (water fleas) by observing them under the microscope and recording their heart rate over a period of time in concentrations of caffeine. Caffeine, which is a stimulant drug rttused in coffee, tea, Red Bull and Pro-plus, causes increased amounts of stimulatory neurotransmitters to be released. As caffeine is a stimulant, a prediction was made that caffeine would increase the heart rate of the Daphnia. Method To conduct this study a culture of living Daphnia were collected from a nearby natural water source area. A light microscope was set up with the light on a low setting; one large Daphnia was selected and placed in the centre of a cavity slide by using a pipette. The Daphnia and the cavity in the slide was surrounded by a ring of cotton wool, this restricted the movement of the Daphnia making it easier to count its heart rate under the microscope. No cover slip was used as it would have damaged the water flea and stopped its oxygen supply. Before placing the slide under the microscope, a tissue was used to remove the pond water around the Daphnia and with a pipette plain water was added to the cavity slide. As soon as the water was added a timer was set for two minutes and the slide was placed under the microscope. Steadily adjusting the controls on the microscope the Daphnia was made visible and the heart was located throughShow MoreRelatedDoes Caffeine Have An Affect On The Heart Rate Of A Dafnia ( Water Flea )?1397 Words   |  6 Pages Does CAFFEINE have an affect on the Heart Rate of a DAFNIA (water flea)? Introduction The objective of this investigation was to observe the affect of caffeine on the heart rate of a Daphnia (water flea), by observing the specimen under a microscope for a set period of time while in an environment of concentrated caffeine. By using a microscope, the collection of data regarding the heart rate of the how to make a line graph in word Daphnia was possible. Drinks such as coffee, Red bull, MONSTERRead MoreIntroduction:. Homeostasis Is The Process Of Maintaining1003 Words   |  5 Pagesor alcohol abuse; lastly, exposure to environmental toxins. Stress can also affect homeostasis. If homeostasis is disrupted for a long period of time, it can result into disease like diabetes, dehydration, or blood problems. To prevent these diseases, a healthy and stress –free lifestyle is critical in the prevention of homeostasis imbalance and includes proper nutrition, rets, exercise and preventative medicine. Caffeine is a sort of drug commonly used daily in our life’s. It is contained into beveragesRead MoreHow Does Caffeine And Nicotine Affect Daphnia Magna?863 Words   |  4 PagesHow Does Caffeine and Nicotine Affect Daphnia magna Introduction: The experiment conducted primarily focused on the heart of the Daphnia magna and how it is affected by caffeine and nicotine. The organism is transparent this key feature is ideal for a model organism. During the experiment a total number of four organisms were treated with caffeine and nicotine. Caffeine is a stimulant of the nervous system. (Caffeine. 2015) Caffeine is present in highly consumed products such as coffee, tea, chocolateRead MoreEffects Of The Heart Rate From Caffeine And Ethanol1137 Words   |  5 Pagesexperiments. Examples of metabolism are differences of the heart rate from caffeine and ethanol. By understanding the topic, it can be proven that these drugs affect organisms in a certain way, such as the heart rate. The information, collected following the experiment, can be inferred in recognizing the way our body responds to chemicals when drinking coffees and colas. The experiment was conducted by inducing the species Daphnia magna to both caffeine and ethanol, while being compared to a controlled groupRead MoreDaphnia Experiment Report1504 Words   |  7 PagesIntroduction Caffeine is found in many plant species, where it acts as a natural pesticide. It is found most commonly in cocoa, tea and coffee, but is also artificially added to some soft drinks such as cola to act as a flavour enhancer. When consumed by humans, caffeine works as a stimulant causing amounts of released neurotransmitters to be increased. High use of caffeine has been related with raised blood pressure, restlessness, insomnia and anxiety which, in the long term, can lead to heart and circulationRead MoreConsumption of Caffeine by Minors1621 Words   |  6 PagesConsumption of caffeine by minors has increased significantly in the past few years. In the modern community it is a common practice amongst teens to consume coffee as a part of an afterschool get together or as an energy booster in the morning. Many other teens consume highly caffeinated drinks that are known as energy drinks, even a can of coke has a very high amount of caffeine present in it. Consequently is caffeine an energy booster or a detriment to wellbeing. So should children be able toRead MoreThe Chemistry Of Energy Drinks1135 Words   |  5 Pagessoda-like beverages that are chemically designed to boost your energy, performance, and increase stamina. Most of these drinks contain caffeine, sugar and many other ingredients including taurine, guarana, and ginseng. These products are generally marketed toward teanagers, students, athletes, and active people in general. As the popularity of these drinks increases so does the amount of reports they are receiving about the dangers of drinking these caffeinated substances. Energy drinks can be dangerous;Read MoreEssay On Caffeine1263 Words   |  6 Pages28 May 2017 Caffeine Is A Killer Caffeine is the most utilized and popular nervous system stimulant, but it is legal and unregulated all across the world; however, the question is, should it be regulated because of the consequences that come along with it? Caffeine is killing people with how high the consumption rate has gone up; â€Å"about 83% of adults drink coffee in the U.S.† (Coffee grinds US for the nation, KAren Fernau). Because of how much people are taking advantage of caffeine to get throughRead Moreenergy dirink lab Essay1024 Words   |  5 Pagesï » ¿ Questions: 1. When we say that something gives us â€Å"energy,† what does that mean? What is a biological definition of energy? When we say that something gives us â€Å"energy† it means that, that drink gave us power to get up and do things. It energizes us so we can accomplish something. The biological definition of energy is the strength and vitality required for sustained physical or mental activity. 2. What is the physiological role of each of the molecules in your table? The role of each ofRead MoreThe Age Old Debate of Caffeine Consumption1319 Words   |  5 PagesA topic that children and parents have quarreled over for what seems like centuries is does caffeine have an significant affect on a child? Although most parents wouldnt dream of giving their kids a cup of coffee, but might buy soft drinks for their children routinely. Foods and drinks with caffeine are everywhere, but what you are going to learn is the actual effect that caffeine has on a child and if minimum consumption is rightfully enforced by parents. It is time for the ancient fight between