Metabolic pathway for AMP synthesis is too complex to have evolved (Talk.Origins)

Claim CB200.5:

The metabolic pathway for AMP synthesis is too complex to have evolved. It requires several intermediate steps, and it is highly improbable that all of the steps could have evolved simultaneously.

Source:
 * Behe, Michael J., 1996. Darwin's Black Box, New York: The Free Press, pp. 140-160.

CreationWiki response:

So what? It does not change the fact that the metabolic pathway for AMP synthesis is Irreducibly complex.

This is baseless speculation. It assumes that a living cell can use “prebiotic” AMP and get it in sufficient quantities, when needed. This statement is also so general as to be untestable. What Talk Origins is saying is that, as long as they can invent an untestable hypothesis, design cannot be inferred.

This statement is bogus; it is based on flawed logic.

This includes the impossible demand that those who hold to the position that irreducible complexity implies design disprove all possible evolutionary scenarios, even those that have not been invented yet.

A via metabólica para a síntese de AMP é muito complexa para ter evoluído (Talk.Origins)