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WCH990 WCH990
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11 years ago
Hi,

We did an experiment in bio where we put 1.25g pieces of liver in 5 different test tubes, and then poured a solution on them.  The solution for the first test tube was 20% hydrogen peroxide, 40% hydrogen peroxide, 60%, 80% and then 100%.  The catalase in the liver supposedly splits the H202 into water and oxygen, and the bubbles coming of the liver supposedly suggest enzyme activity.

I just don't get the results we got:
20% - foam column of 1cm
40% - 1.9cm
60% - 5.75
80% - 6.5cm
100% - 8.75cm

I don't get why the foam column made that jump from 1.9cm to 5.75cm (this is the average so it happened multiple times).

Thanks in advance,

Will.
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wrote...
#1
Staff Member
Educator
11 years ago
Quote from: WCH990 (11 years ago)
40% - 1.9cm
60% - 5.75

Interesting observations. The important thing is that the column increased after each concentration increase. Are you being asked to explain this difference, or you're just curious?
Mastering in Nutritional Biology
Tralalalala Slight Smile
WCH990 Author
wrote...
#2
11 years ago
I'm just curios Slight Smile, but if I did get an explanation is that something I would bother including in my write-up?
wrote...
#3
Staff Member
Educator
11 years ago
You could, but you'd probably not find anything in literature that would assist you. Might as well brush it aside and simply say that oxygen output increased within increased concentration of catalase.
Mastering in Nutritional Biology
Tralalalala Slight Smile
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