Hello I am working from Physioex 8.0 for Human Physiology on exercise 8 (Chemical and Physical Processes of Digestion)
I need the answers to:
Activity 1:
#12- what was the purpose of tubes #1 and #2
what can you conclude from tubes #3 and #4
What do tubes 4,6 and 7 tell you about amylase activity and pH levels?
What is the optimal pH for amylase activity
Does amylase work at pH levels other than the optimal pH?
What is the end product of starch digestion?
In which tubes did you detect the presence of maltose at the end of the experiment
Why wasn't maltose present in the other tubes
Salivary amylase would be greatly deactivated in the stomach. Suggest a reason why, based on what you have learned
Activity 2:
What was the effect of freezing tube #1
How does the effect of freezing differ from the effect of boiling?
What is the smallest subunit into which starch can be broken down
Does amylase use cellulose as a substrate?
What effect did the addition of bacteria have on the digestion of cellulose?
What was the effect of the enzyme peptidase used in tube #6
Activity 3:
Would freezing have the same effect why or why not?
which test tubes were your controls
what were they controlling for
what was pepsins affect on BAPNA
design an experiment that would allow you to test hwo the amount of BAPNA digestion varies with time whats your conclusion
design an experiment that would allow you to test whether or not temperature has any effect on BAPNA digestion
Activity 4:
Why was tube 1 found to have a pH of 7?
what is the main difference between tuibes 2 and 3
what is the action of the substance in tube 2 that was not included in tube 3
can we determine if fat hydrolosis has occured in tube 5
what effect did the other buffers have on the digestive process
what are the products of lipase digestion in tube 2
in what tubes did you detect the precense of fatty acids
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