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smrj07 smrj07
wrote...
Posts: 32
Rep: 2 0
12 years ago
Hi there! This is the only other question that I could really use some help with. Its from PhysioEx 8.0 on the Chemical and physical Processes of Digestion Activity 4.

I have done the experiment and recorded my results belwo but I would be so appreciative if someone could help me answer the 4 questions at the end. Thank you so much!


RESULTS OF ACTIVITY:

Tube 1
lipase vegetable oil bile salts
pH 7.0 buffer
boiled, then incubated 37°C
RESULTING PH = 7.0

Tube 2
lipase vegetable oil bile salts
pH 7.0 buffer
37°C
RESULTING PH = 6.21

Tube 3
lipase vegetable oil deionized water
pH 7.0 buffer
37°C
RESULTING PH = 6.72

Tube 4
lipase deionized water bile salts
pH 9.0 buffer
37°C
RESULTING PH = 9.00

Tube 5
deionized water vegetable oil bile salts
pH 7.0 buffer
37°C
RESULTING PH = 7.00


Tube 6
lipase vegetable oil bile salts
pH 2.0 buffer
37°C
RESULTING PH = 2.00

7
lipase vegetable oil bile salts
pH 9.0 buffer
37°C
RESULTING PH = 8.97

Based on your results, answer the following questions in the Lab Assignment.

8.1 Why was tube #1 found to have that particular pH value?

8.2. What is the action of the substance in tube #2 that was not included in tube #3?

8.3. What are the products of lipase digestion in tube #2?

8.4. In what tubes did you detect the presence of fatty acids?


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Replies
wrote...
Educator
12 years ago
Hey, welcome to the forum...

What activity number is this?
wrote...
12 years ago
Hi there!
The activity is from PhysioEx 8.0 on the Chemical and physical Processes of Digestion...based on Activity 4
Thanks Slight Smile
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