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Applied science, biology, 6A, presentation, distinction level
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This is the presentation power point of the effect of caffeine of Daphne. it was graded at a distinction level
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BTECH Unit 6A biologyThe affect of caffeine on heart rate
,Why am I performing this
experiment
• The heart is a vital organ that moves blood throughout the body,
giving cells nutrients and oxygen while also removing waste. A
number of things, including physical activity, stress, and specific
substances, can affect the heart rate, which is the number of times
the heart beats per minute. Particularly, Numerous substances,
including caffeine, nicotine, and alcohol, have been shown to have
different effects on heart rate. The reason why I am studying this
subject is to have an understanding of the effect of substances on t
heart rate can be used to make an informed medical treatment
decision.
,Topic of interest : how does caffine
affect heart rate in daphnia
• How caffeine affects the heart rate of daphnia is the subject of interest.
Small aquatic crustaceans known as daphnia, also called water fleas, hav
long been used as a model organism in toxicology and physiology resear
These tiny creatures are particularly useful for studying the effect of
caffeine on the heart rate because of their transparent exoskeletons, wh
make it simple to observe their internal organs, including their hearts.
Daphnia can be exposed to various substance, and researcher can monit
changes in the heart rate and use this data to better understand how the
substances can affect human and other larger organisms. This makes
daphnia the perfect model for researching how different substances affe
heart rate and identifying potential health risk to human.
, Aim and objective of the experimen
Aim of the experiment Objective of he experiment
• The aim of this investigation is to The objective of the investigation is to measure the effect of caffeine o
heart rate of daphnia. The following steps will be taken to achieve the
objective of the investigation.
determine the effect of caffeine
on the heart rate of daphnia, • Collect a sample of daphnia and place them in a controlled environm
• Measure the baseline heart rate of the daphnia.
with the purpose of the • Introduce caffeine to the environment of the daphnia
• Measure the heart rate of the daphnia regular interval following the
stimulant effect of the caffeine introduction of caffeine
• Analyze the data to determine if there is a statistically significant diffe
on their nervous system the heart rate between the daphnia exposed to caffeine and those in
control group not exposed to caffeine
• Draw a conclusion and report findings
These steps are intended to help achieve the aim of the investigation, w
to determine the effect of caffeine on the heart rate of the daphnia. by
collecting and analysing data on heart rate of daphnia exposed to caffe
compare it to the control group not exposed to caffeine, we can determ
weather caffeine have a significant affect on the model organism.
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