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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.
The effect of high pH levels?
The value of high pH indicates the basicity of that substance.
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.
Stomach PH level?
The stomach contains hydrochloric acid, which has a pH of generally 1-3. These optimal pH levels must be present in order for pepsin (a protein-digesting enzyme) to function. If the pH is not acidic, pepsin will only be present in its inactive form, pepsinogen, and protein digestion will effectively occur. Uhh.. hope that's what you were looking for. The second part is just a bit more detail as to why the pH of stomach is important.
What happens to the activity of pepsin at High Ph?
it decreases
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 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.
What digestive enzyme does not function in high pH?
Pepsin
What happens to pepsin at pH of 8?
It denatures (enzyme breaks down) because pepsin is best operational in a pH of around 2 or 3 in the stomach juices.
What effect the pH have on protein digestion with pepsin?
It is most effective at around pH 2, and becomes inactive over 5.
Can pepsin and trypsin function in the same environment-?
no they can not because they at completely different pH levels.
How does pH affect enzyme activity Use the enzymes pepsin and trypsin as examples?
Enzymes work within a range of pH levels. Pepsin, which is found in the stomach works in an acidic environment, while trypsin functions in a basic surrounding in the intestines. Increasing or decreasing the pH levels can stop the activity of these enzymes.
Does pepsin affect pH?
Pepsin doesn't affect the pH but it is active in an acidic environment.
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 would happen when the enzyme pepsin that normally acts on protein in the stomach is pushed into the small intestine that has a relatively high pH?
the pepsin would become innactive
What is the pH of pepsin?
2.3
