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How Does Caffeine And Nicotine Affect Daphnia Magna?

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How 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, chocolate, alcoholic and non-alcoholic beverages. (Caffeine Uses. 2014) The stimulant has a side effect of increasing heart rate in humans. (Howell, Lopez, Marshall, & Peters 2003) Nicotine is another stimulant found in tobacco. It widely affects agriculture and is consumed by many people. (What Effect. 2015) A common side effect of Nicotine is an increase of heart rate. (What Effects. 2015) Studies have shown that both nicotine and caffeine increase heart rate in humans. The question to answer is how does it impact the heart rate in other organisms? More specifically how will these substances interact with Daphnia manga’s heart rate? Since caffeine and nicotine increase heart rate in humans it was hypothesized that it will increase the heart rate in Daphnia magna
Background:
Daphnia magna is primarily found in freshwater and brackish environments. (Elenbass 2013) Daphnia are commonly known as “water fleas” due to their small body form and hyperactivity. Daphnia move very rapidly in
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