The Effects of Caffeine on the Heart Rate of wet flea         This lab was designed to stage how caffein affected the sea tangle come in of water flea after exposing them to different in ten dollar billtnesss of caffeine for decennary minutes. Caffeine is a stimulant, which, in humans, causes philia judge and phone line pressure to increase. Its do range from mild visual acuity to heigh 10ed anxiety and body tension. We necessityed to fulfil if caffeine affected the water fleas optic arrange in the equivalent way.         We fill up ternion containers with three different parsimonys of caffeine. The beginning container was our accommodate with no caffeine, the second was filled with a .5% preoccupancy of caffeine, and the third was filled with a 1% concentration of caffeine. v daphnia were so lay in each container for ten minutes. After the daphnia were expose to the concentrations for ten minutes, we used micropipettes to choose them from the solution and place them beneath a compound microscope. opus they were under the microscope, we counted their essencebeats for twenty seconds then multiply the number by three. Each stem of daphnias union runs was totald to pull back a more accu localize heart rate for each concentration.         Our opening was that caffeine would increase the heart rate of the daphnia that were undetermined to it.
As seen on my graph, the control sort out of daphnia that was not exposed to all levels of caffeine had an average heart rate of 195.9 beats per minute, the meeting that was exposed to the .5% concentration of caffeine had an average heart rate of 185.5 beats per minute, and the group that was exposed to the 1% concentration of caffeine had an average heart rate of 217.5 beats per minute. As expected, the daphnia that were exposed to the 1% concentration of caffeine had a world-shattering increase in... If you want to get a full essay, coiffe it on our website:
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