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Because the chemical that works in the stomach- pepsin (a chemical that breaks down proteins) only works in acidic conditions, which is low pH.

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16y ago

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At what pH is the rate of enzyme activity the highest?

Pepsin secreted in the stomach, works at highly acidic pH and the pH could be as low as 2. The optimal pH for pepsin is thus near about 2. This pH is maintained by HCl secreted by the gastric glands in the stomach.


How can you determine the optimum pH of an enzyme?

To determine the optimum pH of an enzyme, you can conduct experiments at different pH levels and measure the enzyme activity. The pH at which the enzyme shows the highest activity is considered its optimum pH.


What is the optimum pH for enzyme B?

The optimum pH for enzyme B is 7. Enzyme B works best at a neutral pH.


What are the effects temperature and pH level have in the efficacy of digestive enzymes?

As you increase the temperature at first the activity of an enzymes will also increase, so the reaction will go faster. At a certain temperature, called the optimum temperature, the enzyme will work at its maximum rate. Above the optimum temperature the enzyme activity decreases. This is due to the loss of shape by the enzyme molecules, a process called denaturation. In mammals, most enzyme shave an optimum temperature of about 37 oC. Roughly speaking, the rate of an enzyme reaction doubles for each 10 oC rise in temperature, until the optimum temperature is reached. pH affects enzymes in a similar way. At a low pH many enzymes have a low activity. As the pH increases the enzyme activity increases until the optimum pH at which the enzyme has maximum activity. Above this pH enzyme activity decreases. These effects are also dueto denaturation of the enzyme molecules at extreme pH values. Many enzymes work best at around pH 7.0. An important exception is pepsin, a protein-digesting (protease) enzyme in the stomach. This works at low pH values such as those found in the stomach (around pH 2.0), due to the presence of hydrochloric acid.


What is the pH for pepsin?

The optimal pH for pepsin, an enzyme found in the stomach that helps in protein digestion, is around 2.0. This low pH is necessary for pepsin to be active and function effectively in breaking down proteins into smaller peptides.


What are the optimum temperature and the optimum pH of an enzyme?

The optimum temperature and pH of an enzyme vary depending on the enzyme. Generally, enzymes have an optimum temperature around body temperature (37°C) and an optimum pH around neutral (pH 7). However, these values can differ significantly for different enzymes based on their specific structure and function.


What is the optimum pH for stomach protease?

The optimum pH for stomach protease, specifically pepsin, is around 1.5 to 2. It functions best in the highly acidic environment of the stomach, which helps to break down proteins efficiently for digestion.


What is the enzyme's optimum pH?

I believe it's 7.3, the pH of human blood, as most enzymatic reactions occur there. However, there are special enzymes, such as the ones which are in the stomach, which work best at around a pH of 2.


How do the optimum temperature and pH for pepsin activity relate to the location of the enzyme in the body?

In the stomach, the pH could be as low as 2. Pepsin is an enzyme that breaks up protein molecules. It needs to have an optimum pH close to that. In the mouth, amylase occurs. pH in the mouth is often about 7. Optimum pH for amylase needs to be close to that.


What is the pH scale of stomach fluids?

pH 2This is because pepsin, the primary digestive enzyme found within the stomach, functions optimally at a low pH.


Why does the enzyme trypsin get deactivated when introduced in the gastric juice of the stomach?

The optimum pH for tryspin is about 8.0, which is the pH of the intestine, whereas the pH of gastric juice is 1.5-2.0, which is highly acidic.


Does the enzyme trypsin get deactivated when introduced in the gastric juice of the stomach?

The optimum pH for tryspin is about 8.0, which is the pH of the intestine, whereas the pH of gastric juice is 1.5-2.0, which is highly acidic.