Unit 2: The Cell Extras  Study Guide

Chapter 8 9 Review
  1. consists of all the chemical reactions of an organism, organized into metabolic .
  2. Energy is associated with the relative of objects, and abides by laws of physics called .
    Review: Energy Transformations
  3. ATP drives chemical reactions for cellular work by , transferring a phosphate to other molecules, and is replenished by cellular (aerobic) .
  4. An is a protein that speeds up a reaction without being consumed by the reaction.
  5. An enzyme facilitates an reaction by lowering its _ANI_8,3 energy.
  6. An enzyme is often activated when its substrate binds to the protein's site.
  7. An can be regulated by altering its shape in response to the binding of a molecule.
  8. Enzymes must be in the proper 3-dimensional (conformation) to be active. Factors that affect enzyme function include and , and most enzymes have an optimal temperature and pH range.
    Review: Chemical Reactions and ATP
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