The Effect of Caffiene on Heart Rate - 1658 Words

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 live in various aquatic environments ranging from acidic swamps to freshwater lakes, ponds, streams and rivers.In the water flea Daphnia, the single, small heart is easily visible when viewed under transmitted light under a low power†¦show more content†¦Equilibrated for 1 minute. 7) Results was recorded in a suitable format/graph. 8) The treatment was compared and the effect of each treatment on the heart rate was explained. RESULT: Concentration of Solution | The Number of Heartbeats of Daphnia | | Average heartbeats | | 0-15 s | 15-30 s | 30-45 s | 45-60 s | | Distilled Water | 69 | 68 | 65 | 65 | 66.75 | 0.1 | 70 | 74 | 62 | 65 | 67.75 | 0.2 | 73 | 74 | 77 | 77 | 75.25 | 0.3 | 77 | 78 | 74 | 73 | 75.50 | 0.4 | 76 | 80 | 74 | 73 | 75.75 | 0.5 | 89 | 80 | 77 | 75 | 80.25 | Table 1: The number of heartbeats of Daphnia based on the concentration Graph 1 : Average of heartbeats against Concentration of caffeine solution DISCUSSION: At first, distilled water was tested on Daphnia and it shows that the heartbeats was 66.75. distilled water do not have effect on Daphnia heart rate. The results present the normal heart rate of Daphnia. Then 0.1 concentration of caffeine solution was used on Daphnia by dropping 2 drops of caffeine solution on them. The average of heartbeats was 67.75. There is increasing of heart rate between distilled water and caffeine solution. Thus, we suggested that caffeine truly have effect on Daphnia. Hypothesis that we made earlier was accepted. The concentration is low that is 0.1% and cause thereShow MoreRelatedEssay On Caffeine975 Words   |  4 Pagesthe caffeine they are ingesting gives off harmful effects to their body. The answer to this isn’t as simple as it seems. Depending your weight, gender, and several other attributes, the amount of healthy caffeine you consume could be completely different. It encourages the production of adrenaline and increases the level s of neurotransmitters, which are responsible for mood changes. Along the same line with adrenaline, caffeine increases heart rate and is responsible for extreme bursts of energy.Read MoreEssay about Substance Abuse and Effects On The Human Brain2438 Words   |  10 Pagesphysiological effect when ingested or otherwise introduced into the body† (Merriam Webster Dictionary). By this definition alone, even food can be categorized as a â€Å"drug†. For this paper I will review the main subtances of which are illegal, or under regulation by the government. Abuse as defined by Merriam Webster Dictionary is; â€Å"use (something) to bad effect or for a bad purpose; misuse.† Therefore, substance abuse is basically using drugs improperly with an intent to attain an effect of some sort;Read MorePhilip Larkin Love and Marraige4262 Words   |  18 Pageschoices. Both Larkin and Boland have a good deal to say on the topic of love and marriage, and to a certain extent, they both affirm my fears. They both agree that as time passes, love changes. However, while Larkin’s poems all seem to see time’s effect on love as destructive, Boland’s honest poetry still portrays hope for love as it is tested and proven true by time. Two poems by each poet, â€Å"Who Called Love Conquering† and â€Å"Talking in Bed† by Philip Larkin, and â€Å"Thanked Be Fortune† and â€Å"MarriageRead MoreStress And Anxiety Of Anxiety Essay3350 Words   |  14 Pages An employee having sudden attacks of anxiety would display the following symptoms: difficulty in breathing, trembling, sweating, rapid heartbeat, nausea, and numbness. A common complaint during an attack is verbalized fear of having an impending heart attack. Sometimes, an employee escapes to a place where he feels safe whenever feelings of panic overwhelm him. The root of the problem is said to be the employee s feelings of distrust. Therefore, education about the condition and communication in