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it depends on the concentration of NaOH, pepsin, buffer used, ... that cannot be answered in that way...
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∙ 16y ago
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What is the pH of pepsin?
2.3
Do you expect that optimal PH for pepsin would be the same as that for rennin?
The optimal pH for pepsin and rennin is about the same, 2.0 and 3.4 respectively. Pepsin is slightly more acidic.
What is the pH of a 10-4 M naoh solution?
-log(10^-4 M NaOH) = 4 14 - 4 = 10 pH NaOH -----------------------
Why is pepsin stable at a low pH?
Pepsin is a an acidic proteolytic enzyme activated from its precursor pepsinogen. Pepsin exhibits optimal activit at pH 1.5 to 2. It is highly active and stable at acidic pH and can be inactivated by pH 8.5 -11. Their amino acid composition is the reason for its stability.
What is the pH of NaOH?
3
Does pepsin affect pH?
Pepsin doesn't affect the pH but it is active in an acidic environment.
What is the pH for pepsin?
Pepsin is a type of protease that works mainly in the stomach. As a result, its optimum pH is around 2. The high acidity is provided by the hydrochloric acid in the stomach.
During digestion the pH in the stomach is 2 What does this indicate about the optimum pH of pepsin?
Pepsin is therefore acidic since the pH in the stomach is 2
What is the pH of pepsin?
2.3
Is the optimal pH of trypsin acidic or basic?
The optimum PH of pepsin ranges between 1.0 and 4.0. Pepsin exhibits about 90 percent of the maximum activity and about 35% of the maximum activity.
Do you expect that optimal PH for pepsin would be the same as that for rennin?
The optimal pH for pepsin and rennin is about the same, 2.0 and 3.4 respectively. Pepsin is slightly more acidic.
How much NaOH do you use to lower pH?
You dont - adding NaOH increases pH.
What is the pH of a 1 millimolar NaOH soluiton?
1 millimolar = 0.001 M NaOH ( a base, remember ) - log(0.001 M NaOH) = 3 14 - 3 = 11 pH ----------
Compare the optimum pH levels for trypsin and pepsin. how is the optimal pH level of pepsin relevant to it's particular location in the body?
pepsin is found in the stomach and the pH there is 2 while trypsin is found in the small intestine (duodenum and jejunum) and the pH there is 8-9. Thus, the optimum pH levels for pepsin and trypsin are 2 and 8-9 respectively.
What effect the pH have on protein digestion with pepsin?
It is most effective at around pH 2, and becomes inactive over 5.
Can NaOH and pepsin cause digestion?
No is the answer. Sodium hydroxide is is such a strong alkali that it will 'burn' the cells just like acid does. So it is not found in body. Instead you have sodium bi carbonate. But you have very strong acid in stomach. Hydrochloric acid. Imagine acidity go on increasing ten times as you go from 6 to 5 and 5 to 4. And pH in stomach is 1 to 2. (Why does not stomach is 'not' charred at this pH ?) Pepsin works in high acidic pH only and almost stop working at 5.5 pH. So no question of digestion in sodium hydroxide, which is strong alkali with very high pH. If you lower the pH pepsin starts working again.
What is the pH of a 10-4 M naoh solution?
-log(10^-4 M NaOH) = 4 14 - 4 = 10 pH NaOH -----------------------
