Bio1151 Chapter 8 An Introduction to Metabolism
  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             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