What component is present in every loop- producing energetic molecules from sugar?

What component is present in ever part of a loop, such as one that involves protiens producing energetic molecules from sugar?





A. Raw materials


B. Energy release


C. Energy absorbtion


D. Information





I just cant seem to find the answer and the study guide is no help....THANKS SO MUCH!!!!

What component is present in every loop- producing energetic molecules from sugar?
would have to say A, raw materials. At any step of a cycle involving a series of enzymes, such as the Krebs cycle, energy may be released and/or absorbed, so it can't be exclusively B or C and information doesn't matter for purely chemical reactions, so D can't be an answer. For each step of the cycle, there has to be a substrate for the enzyme to act upon, and this substrate is a raw material for that particular enzymatic step, so A



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