Question

Digestive enzymes, such as pepsin, often denature as food moves through the different parts of the digestive system. Why does this occur?

Changes in pH often alter the shape of the active site.

Changes in pH often alter the shape of the substrate.

Enzymes from previous reactions run out of substrate and stop reacting.

Enzymes are consumed before they reach the next stage of digestion.

Answer 1

@Narad

Answer 2

The appropriate response is the fourth one. Digestive enzymes, for example, pepsin, regularly denature as sustenance travels through the diverse parts of the stomach related framework. Compounds are devoured before they achieve the following phase of absorption. so your answer is not b.c. or d.

Answer 3

thank you

Answer 4

Incorrect. It is not D.

The answer is option A. the pH in the stomach is around 2, optimal for enzymes in gastric juices, whereas the pH in the small intestine and duodenum is becoming more alkaline due to the pancreas releasing amalyse, an enzyme that requires a more alkaline optimal pH. The change in pH denatures stomach and gastric acids by changing protein conformation (reduces the Vaan der Waals interactions in the tertiary structure of the polypeptide).

Answer 5

D is definitely wrong. Enzymes are NEVER consumed. They are reusable.

Answer 6

I just said it was A.

Answer 7

Okay thank you ferre

Answer 8

yeah he messed up but then at the end he says the answers are not B C or D which makes the answer A so i think he messed up when writing lol

Answer 9

Ah, I see what you did there.