most enzyme - assisted reactions are\na. reversible\nb. able to take place at any temperature\nc…

most enzyme - assisted reactions are\na. reversible\nb. able to take place at any temperature\nc. exothermic\nd. endothermic\n\nlevel 4\nq4\nenzymes are not consumed in chemical reactions. what does this mean?\na. enzymes are not used up in a reaction\nb. enzymes are not denatured\nc. enzymes can continue to be used in many reactions\nd. all of the above

most enzyme - assisted reactions are\na. reversible\nb. able to take place at any temperature\nc. exothermic\nd. endothermic\n\nlevel 4\nq4\nenzymes are not consumed in chemical reactions. what does this mean?\na. enzymes are not used up in a reaction\nb. enzymes are not denatured\nc. enzymes can continue to be used in many reactions\nd. all of the above

Answer

Brief Explanations:

  1. For the first question: Enzymes - assisted reactions are often reversible. Enzymes lower activation energy in both forward and reverse directions. They don't work at any temperature (denature at high - temps), and reactions can be exothermic or endothermic.
  2. For the second question: When enzymes are not consumed in chemical reactions, it means they are not denatured, not used up in a single reaction, and can be reused in multiple reactions.

Answer:

  1. A. Reversible
  2. D. All of the above