3. enzymes work best at optimal temperature and ph values. for example, the enzyme, pepsin, in your stomach…

3. enzymes work best at optimal temperature and ph values. for example, the enzyme, pepsin, in your stomach must be able to function in a highly acidic environment to break peptide bonds found in proteins. acidic or basic conditions can disrupt the hydrogen bonds between the loops of the protein chains. if this disruption occurs near the active site, the enzyme can become distorted and not fit the substrate perfectly. the rate of reaction is reduced as more enzymes become denatured.\na) what is the optimal ph for pepsin? ________\nfor lipase? ________\nb) do you think lipase is an enzyme that is found in the stomach? why or why not?

3. enzymes work best at optimal temperature and ph values. for example, the enzyme, pepsin, in your stomach must be able to function in a highly acidic environment to break peptide bonds found in proteins. acidic or basic conditions can disrupt the hydrogen bonds between the loops of the protein chains. if this disruption occurs near the active site, the enzyme can become distorted and not fit the substrate perfectly. the rate of reaction is reduced as more enzymes become denatured.\na) what is the optimal ph for pepsin? ________\nfor lipase? ________\nb) do you think lipase is an enzyme that is found in the stomach? why or why not?

Answer

Explanation:

Step1: Identify optimal pH for pepsin from graph

From the graph, the peak of the pepsin - relative activity curve occurs at pH = 2.

Step2: Analyze location of lipase

Lipase is not found in the stomach. The stomach has a highly acidic environment (pH around 2). From the graph, lipase has its optimal activity at a higher pH (around 8 - 9). Enzymes work best at their optimal pH, so lipase is more likely to be found in an environment with a pH closer to its optimal value, such as the small intestine.

Answer:

a) 2 b) No. The stomach has a highly acidic environment (pH around 2), while lipase has its optimal activity at a higher pH (around 8 - 9), so it is more likely to be found in an environment with a pH closer to its optimal value, such as the small intestine.