SyedMohammed98
  • SyedMohammed98
♠Effect of caffeine on the heart rate of Daphnia♠ (Experiment 1) (Easy 9 points)
Biology
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schrodinger
  • schrodinger
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SyedMohammed98
  • SyedMohammed98
☻ The following experiment is described in the easiest and simple words so that you all can easily understand☻ Daphnia are tiny aquatic invertebrates.They're transparent, so you can see their internal organs. This means it's pretty easy to monitor their heart rate by observing them through a microscope.
SyedMohammed98
  • SyedMohammed98
♠Here's how you could investigate the effect of caffeine on their heart rate♠ 1) Make up a range of caffeine solutions of different concentrations and a control solution that has no caffeine in it all♣ 2) Transfer one Daphnia into the dimple on a cavity slide ( A MICROSCOPE SLIDE WITH A ROUNDED DIP) ♣ 3) Place a slide onto a stage of a light microscope and focus it on the beating heart of the Daphnia ♣ 4) Place a small drop of caffeine solution onto the Daphnia 5) Count the number of heartbeats in 10 seconds and multiply this by six to calculate beats per minute ♣ 6) Repeat this 10 times using the same concentrations of caffeine but a different Daphnia individual each time . 7) DON'T FORGET to keep all other factors constant (e:g Temperature and Volume of caffeine solutions ) ♣ 8) Repeat the experiment using the other concentrations of caffeine solutions 9) Compare the results to see how caffeine concentrations affect heart rate e:g BY DRAWING A GRAPH ♣
SyedMohammed98
  • SyedMohammed98
☻Thank you for reading☻

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More answers

anonymous
  • anonymous
good experimentation...if u done it by ur own thn bravo
SyedMohammed98
  • SyedMohammed98
Thank you ☻
anonymous
  • anonymous
what is the conclusion of ths exp besides its statistics?
SyedMohammed98
  • SyedMohammed98
Heart rate increase as Caffeine concentrations increase :)
SyedMohammed98
  • SyedMohammed98
that's why increased amount of caffeine is not good for health as it increased the heart rate not only in daphnia but in all the multi cellular organisms as well, Thus increasing the risk of getting CVD'S
SyedMohammed98
  • SyedMohammed98
increases**
anonymous
  • anonymous
great conclusion :)
SyedMohammed98
  • SyedMohammed98
Thanks :D
rvc
  • rvc
Good work :)
SyedMohammed98
  • SyedMohammed98
Thanks ☻☺
anonymous
  • anonymous
Nice :-)
SyedMohammed98
  • SyedMohammed98
thnx :)
nincompoop
  • nincompoop
the experiment shows the effects of caffeine to heart rate relative to concentration it does not show anything about CVD
nincompoop
  • nincompoop
you can, however, do an experiment to measure average threshold when certain high levels of caffeine may induce myocardial infarction
SyedMohammed98
  • SyedMohammed98
okay....thanks :)
kaylaprincess
  • kaylaprincess
maybe i shouldn't drink straight espresso then lel
SyedMohammed98
  • SyedMohammed98
LoL. :D
nincompoop
  • nincompoop
i'll show you a simple daphnia experiment
nincompoop
  • nincompoop
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SyedMohammed98
  • SyedMohammed98
thank you nin :)

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