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Biology (619)
BIOL 2319 (2)
Strauss (2)
Lecture

REGCELLBIO.docx

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Department
Biology
Course
BIOL 2319
Professor
Strauss
Semester
Spring

Description
Missy Johnson 2008 Results The heart rates of three Daphnia Magna were recorded during three fifteen second intervals. The average of the three heart rates established a baseline heart rate for the “normal” Daphnia, before adding neurotransmitters. Figure 1 shows the difference in heart rate before and after adding Acetylcholine. The average heart rate of the daphnia before adding Acetylcholine was about 130bpm. The heart rate of the daphnia after adding the Acetylcholine was a little over 100bpm. Figure 1. Effects of Acetylcholine (Ach) on Daphnia Magna heartbeat (BPM). The heartbeat of three Daphnia magna were measured three times for 15 seconds to establish an average “normal” rate. They were then incubated in Acetylcholine for three minutes. The heart rate was measured again three times after addition of the Acetylcholine. The average heart rate before and after adding the Acetylcholine was taken by seven groups and the averages of the data are represented above. The difference in heart rate before and after adding Dopamine is shown in figure 2. The average heart rate of the daphnia before adding Dopamine was about 115bpm. The heart rate of the daphnia after adding the Dopamine was a little above 145bpm. Figure 2. Effects of Dopamine on Daphnia Magna heartbeat (BPM). The heartbeat of three Daphnia magna were measured three times for 15 seconds to establish an average “normal” rate. They were then incubated in Dopamine for three minutes. The heart rate was measured again three times after addition of the Dopamine. The average heart rate before and after adding the Dopamine was taken by seven groups and the averages of the data are represented above. Missy Johnson 2008 Figure 3 illustrates the difference in heart rate of the Daphnia before and after adding Diazanon. The heart rate of the Daphnia before adding Diazanon was around 120bpm. The heart rate of the Daphnia after adding the Diazanon was around 100bpm. Figure 3. Effects of Diazonon on Daphnia Magna heartbeat (BPM). The heartbeat of three Daphnia magna were measured three times for 15 seconds to esta
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