Transcribed Image Text: 1. Pepsinogen (an inactive form of the enzyme) that forms in the main cells of the stomach has a molecular weight of 42,000 D. In the gastric

Transcribed Image Text: 1. Pepsinogen (an inactive form of the enzyme) that forms in the main cells of the
stomach has a molecular weight of 42,000 D. In the gastric juice, the pepsinogen
turns into the active enzyme pepsin, while its molecular weight decreases to
35,000 D. Explain the mechanism of regulation of enzyme activity. To do this:
a) draw a scheme for regulating the activation of pepsin;
b) name the class of the enzyme that converts pepsinogen to pepsin;
c) indicate which levels of protein structural organization change when pepsin
is activated.

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