A change in daphnia heart rate under the influence of a concentration of caffeine solution creates a procedure providing an interesting investigation into the effects of different chemical concentrations on a metabolic process and whether or not an increase of caffeine would increase the rate of metabolism in multi-celled organisms.
The Effect of Caffeine on the Heart Rate of Daphnia Essay Sample. Caffeine is widely known as a stimulant. Stimulants cause an increase in the metabolism of the human body resulting in an increase in the rate of the heart and lungs. In small doses they wake you up and give you a high by exciting the central nervous system.
The aim of the activity was to investigate the effect of caffeine on the heart rate of Daphnia. Caffeine is a stimulant drug, which causes increased amounts of stimulatory neurotransmitters to be released. At high levels of consumption caffeine has been linked to restlessness, insomnia and anxiety.
In this experiment, I am going to determine the effect of different concentration of caffeine on the heart rate of Daphnia. Daphnia is assumed as the substitute of human being in this experiment to investigate the effect of chemicals on the heart beat of living organisms.
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Daphnia Practical Write-up Purpose and Hypothesis The purpose of this experiment was to determine how affected the heart rate of the daphnia. The results gained from this experiment aids scientific researchers in finding out how caffeine can affect heart rate as well as human health.
The 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.
Aim: The aim of this investigation is to investigate the affect of caffeine on the heart rate of Daphnia (Water Fleas). Hypothesis: The heart rate of the Daphnia will increase when exposed to caffeine. Caffeine acts as a stimulant, which causes stimulatory neurotransmitters to be released in excess amounts.
Predictions If the environment affects daphnia heart rate as it does in humans the exposing it to different environment’s should affect its heart rate. If daphnia is exposed to alcohol at varying concentrations, then daphnia heart rate should fall. If daphnia is exposed to caffeine at varying concentrations then daphnia heart rate should rise.
This laboratory was designed to present how caffeine affected the heart rate of daphnia after exposing these to different concentrations of caffeine for 10 minutes. Caffeine is a stimulating, which, in humans, causes heart costs and stress to increase. Their effects range between mild alertness to heightened anxiety and body pressure.
Daphnia Under Microscope Caffeine. 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. 2 pages 18 Apr.
How Caffeine Affects the Heart Rate of Daphnia Essay Sample. The 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.
Does caffeine affect the heart rate of Daphnia? Introduction In this experiment I aim to find out if caffeine has an affect on heart rate. Instead of using human subject, whom may already have a high tolerance to caffeine or could have ingested caffeine that day making the tests unfair, I will use Daphnia, a crustacean.
Essay text: From this, I can assume that it also affects the heart rate of Daphnia and that the rise in heart rate should reflect the concentration of caffeine. Many scientific studies within the last few years have proven this, for example, Null hypothesis- Their will be no correlation between the concentration of caffeine given to the Daphnia.
Abstract The project that I chose to research was the effect of Ibuprofen on the heart rate of the daphnia. The reason that I chose to do this was because many people in society use over the counter pain killers without really understanding any of the long term effects of this medicine othe.
The Affect of pH on Daphnia Heart Rate Research Project - Ellen Ferguson, Sarah Ashton Discussion Methods Introduction Acidification of lakes and ponds becoming more prevalent Natural and anthropogenic causes Data opposed hypothesis Heart rate did not decrease linearly pH: 7 -.
In conclusion the heart rate of the daphnia increased when caffeine was added. From the graph it suggests that there is a significant difference between the heart rate without caffeine and with caffeine. The highest the heart rate per minute without caffeine was 306 beats which increased by 84 beats per minute when caffeine was added.
Two of these changes are heart rate and blood pressure. Heart rate is the number of times a person’s heart beats in one minute. A normal resting heart rate is between 60 and 100. Each person has a maximal heart rate that estimated equates to 220 minus their age. Therefore, as the person ages, the estimated maximal heart rate decreases.
Caffeine is in coffee, tea, soft drinks, chocolate and some nuts. Whether high caffeine intake increases the risk of coronary heart disease is still under study. Many studies have been done to see if there's a direct link between caffeine, coffee drinking and coronary heart disease. The results are conflicting.