which substances act as stimulants and which substances act as depressant. Daphnia was treated with aged water‚ caffeine‚ ethyl alcohol‚ nicotine‚ and epinephrine‚ and their effect on heart rate of Daphnia was observed. The results are posted on table 1: Table 1: Average heart rate for Daphnia at pre-stimulus and post stimulus for different hormones: # OF TRY AGED WATER CAFFEINE ETHYL ALCOHOL NICOTINE EPINEPHRINE CONTROL TREATED CONTROL TREATED CONTROL TREATED CONTROL
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Weight (g) Tea Leaves 5.5783 Crude Caffeine 0.0246 Empty Beaker 117.5350 Beaker + Crude Caffeine 117.5596 The table above shows the weight of the sample tea leaves‚ the crude caffeine content in the sample‚ the empty beaker used in the extraction‚ and the beaker with the crude caffeine. It is induced from there that for that amount of sample tea leaves‚ which is equivalent to three bags of Nature’s Pride Tea; there is a 0.0246 g content of crude caffeine for every 3 servings of this tea.
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The Effect of Caffeine on Athletes during Endurance Sports Caffeine is a mild stimulant that is found naturally in at least 63 plant species. Caffeine can be found in the leaves‚ stems‚ seeds‚ and roots of these various plants. It is also part of the methylxanthine family. Caffeine consists of a xanthine molecule with three methyl groups attached to it (Wikipedia). Caffeine can be found in many products like sodas‚ tea‚ and coffee‚ but it also occurs in several other products such as prescription
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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
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of Caffeine Consumption on Academic Performance in College Undergraduates Morgan Bolen‚ Maria Naula-Quintero‚ and Carlin Wright Michigan State University Abstract In this study we are interested in assessing the relationship between average amount of caffeine consumed per day and academic performance. We hypothesized that an increase in average caffeine consumed per day would result in increased academic success. A short survey was composed based on average amount of caffeine consumed
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Neuropsychiatric effects of caffeine Abstract Psychiatrists rarely enquire about caffeine intake when assessing patients. This may lead to a failure to identify caffeine-related problems and offer appropriate interventions. Excessive caffeine ingestion leads to symptoms that overlap with those of many psychiatric disorders. Caffeine is implicated in the exacerbation of anxiety and sleep disorders‚ and people with eating disorders often misuse it. It antagonises adenosine receptors‚ which may potentiate
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The effect of caffeine on typing speed‚ accuracy and heart beat 1. Introduction Caffeine is a substance found in coffee‚ tea and most sodas. When it is consumed‚ it is a mild stimulant. The energy drink‚ Monster‚ contains caffeine‚ which has the ability to manipulate adenosine (adrenaline)‚ a substance present in the brain that is used to transmit brain signals to different parts of the body. Adenosine causes an increase in alertness and awareness. Modern studies show that there is direct benefits
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proposition. Related Literature and Studies Downsides in Caffeine New research from John Hopkins Medical School shows that performance increases due to caffeine intake are the result of caffeine drinkers experiencing a short-term reversal of caffeine withdrawal. In essence‚ coming off caffeine reduces your cognitive performance and has a negative impact on your mood. Drinking caffeine triggers the release of adrenaline. When caffeine puts your brains and body into this hyper-aroused state‚ your
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The Truth about Coffee Introduction Attention Getting Opener: How many of you here consider yourself caffeine addicts? How much coffee do you drink a day? One cup? Two cups? More? How about caffeinated sodas? Caffeine is pervasive in our society these days and every few months we hear about how a study has shown that it is bad for us or good for us. What we are we to believe? What I would like to share with you today may not cause you to change your coffee consumption but a t least you’ll be better
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Sentence Outline “Effects of Diet Soda on the Body” I. Introduction A. Attention getter o Diet soda‚ a calorie free‚ carb free‚ fat free beverage. But is it really healthy for you? B. Credibility statement o I know first hand some of the effects diet soda has on the body because I used to drink about 4 of them a day‚ but now I drink them on occasion due to the effects. C. These statement o Diet Soda is not the healthiest alternative to regular soda due to the ingredients and bad side effects it
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