Explain one by one why the results is like that for 4 test tubes in pancreatin digestion specifically for protein digestion
Explain one by one why the results is like that for 4 test tubes in pancreatin digestion specifically for protein digestion
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
Related questions
Question
Explain one by one why the results is like that for 4 test tubes in pancreatin digestion specifically for protein digestion
![B. Pancreatin digestion
1. Prepare 4 test tubes as follows:
Tube 1 - 3 ml neutral pancreatin
Tube 2 - 3 ml water
Tube 3 - 3 ml water + 1.5 ml pancreatin
Tube 4
- 3 ml water + 1.5 ml pancreatin + 1.5 ml 1% Na2CO3
2. Place equal size of hard-boiled egg white in all tubes.
3. Place all tubes in water bath with a temperature maintained at 40°C_for 1.5
hours.
4. Add 3 drops of toluene in all tubes and incubate till the next lab period.
5. Observe the size of the egg white in each of the tubes.
6. Take 1 ml of the supernatant in each tube and place in 4 separate test tubes
labelled 1b,2b,3b,4b. Add 1 ml of 10% NaOH and 2 drops of 1% CUSO4 in each
tube. Mix and compare the result of the 4 tubes.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc6c2ffc8-87ac-456f-93c8-19bd28731bdc%2Fa489769d-d469-405a-98c4-d30685f711b4%2Fdd1kg5a_processed.png&w=3840&q=75)
Transcribed Image Text:B. Pancreatin digestion
1. Prepare 4 test tubes as follows:
Tube 1 - 3 ml neutral pancreatin
Tube 2 - 3 ml water
Tube 3 - 3 ml water + 1.5 ml pancreatin
Tube 4
- 3 ml water + 1.5 ml pancreatin + 1.5 ml 1% Na2CO3
2. Place equal size of hard-boiled egg white in all tubes.
3. Place all tubes in water bath with a temperature maintained at 40°C_for 1.5
hours.
4. Add 3 drops of toluene in all tubes and incubate till the next lab period.
5. Observe the size of the egg white in each of the tubes.
6. Take 1 ml of the supernatant in each tube and place in 4 separate test tubes
labelled 1b,2b,3b,4b. Add 1 ml of 10% NaOH and 2 drops of 1% CUSO4 in each
tube. Mix and compare the result of the 4 tubes.
![B. Pancreatin Digestion
TUBE
SIZE of egg white
Results
Purple colored Solution
1(Pancreatin)
No change in size
No change in size
Purple colored Solution
2(Water)
No change in size
Light-Purple colored Solution
3(water, Pancreatin)
(Ctrl) -
Blue colored solution
Size decreased
4(water, Pancreatin,
Na2CO3)
greatly](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc6c2ffc8-87ac-456f-93c8-19bd28731bdc%2Fa489769d-d469-405a-98c4-d30685f711b4%2Fjul1n3_processed.png&w=3840&q=75)
Transcribed Image Text:B. Pancreatin Digestion
TUBE
SIZE of egg white
Results
Purple colored Solution
1(Pancreatin)
No change in size
No change in size
Purple colored Solution
2(Water)
No change in size
Light-Purple colored Solution
3(water, Pancreatin)
(Ctrl) -
Blue colored solution
Size decreased
4(water, Pancreatin,
Na2CO3)
greatly
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