In an enzymatic pathway A B and C are intermediates required

In an enzymatic pathway, A, B, and C are intermediates required to make D. and I. 2. and 3 arc enzymes that catalyze the designated reactions: This is analogous to what happens in a factory. In a leather goods factory, for example, the leather (A) is cut (1) into the parts needed for shoes (B). The shoe parts ore sewn (2) together (making C). and C is packaged (3) for shipping as D. Now shoe sales are dropping and backpack sales (E) are increasing. As a result, the manager of the factory decides to switch production from shoes to leather backpacks (E). Where should the shoe-making process be shut down: step 1, 2, or 3? Explain. In a cell, if an excess of a chemical product D arises, where should this synthetic pathway be shut down in the cell? Explain your reasoning.

Solution

a) the shoe making should shutdown at step 1 itself as it is of no use to produce any parts (for making shoes) that will not b used at all.

b) by same logic as above, the pathway in cell shuld shutdown at step 1