Aseries of enzymes catalyze the reactions in the metabolic pathway x → y → z → a. product a binds to the enzyme that converts x to y at a position remote from its active site. this binding decreases the activity of the enzyme. what is substance x?

X is the reactant.

Explanation:

It is activated by enzyme but the enzyme does not readuce only activate the reaction

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

im not exactly sure but i think its b!