× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
New Topic  
sam1111 sam1111
wrote...
Posts: 2
Rep: 0 0
9 years ago
if anyone could help with these questions it would be appriciated Slight Smile

Activity 1: Assessing Starch Digestion by Salivary Amylase
1) Which 3 tubes would you compare to determine the effect of pH on amylase activity? What effect does pH have on amylase activity? Explain. (2 mark)
5) Why was a temperature of 37°C used in most of the experiments performed during this simulation? What effect did freezing have on the activity of salivary amylase? (2 marks)
6) Amylase is also produced in the pancreas and enters the duodenum of the small intestine, where it continues to digest carbohydrates. Why is it important to produce more amylase in this region of the GI tract? (2 marks)

Activity 2: Exploring Amylase Substrate Specificity
 2) Based on the results of test tubes 3 and 6, would you expect bacteria to only use amylase to breakdown carbohydrates?
4)If test tube 3 was boiled, would you expect a change in the Benedict’s test result? What about test tube 5? Explain.

thanks
Read 668 times
1 Reply

Related Topics

Replies
wrote...
Staff Member
9 years ago
2) Based on the results of test tubes 3 and 6, would you expect bacteria to only use amylase to breakdown carbohydrates?

The bacteria were able to digest the cellulose because they produce the enzyme, cellulase.

5) Why was a temperature of 37°C used in most of the experiments performed during this simulation? What effect did freezing have on the activity of salivary amylase? (2 marks)

The 37°C incubation is significant because it is the same temperature as body temperature so it should be ideal for the enzyme.
- Master of Science in Biology
- Bachelor of Science
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1256 People Browsing
 115 Signed Up Today
Related Images
  
 1287
  
 2832
  
 4577