General ---------Biology----------------------------------------------------- ------------------Online---------------------------------------wilcox@sunline.net Ch. 6  Metabolism of carbohydrates, fats, proteins, nucleic acids

Which of the following would decrease the entropy within a system?
     a. dehydration synthesis
     b. hydrolysis
     c. respiration
     d. digestion
     e. catabolism

. Which of the following is true for exergonic reactions?
     a. The products have more potential energy than the reactants.
     b. The products have less potential energy than the reactants.
     c. Reactants will always be completely converted to products.
     d. A net input of energy from the surroundings is required for the
        reactions to proceed.
     e. The reactions upgrade the chemical energy in the products at the
        expense of energy from the surroundings.

Which of the following statements is true concerning catabolic
     pathways?
     a. They combine molecules into more complex and energy rich
        molecules.
     b. They are usually coupled with anabolic pathways to which they
        supply energy in the form of ATP.
     c. They involve endergonic reactions that break complex molecules
        into simpler ones.
     d. They are spontaneous and do not need enzyme catalysis.
     e. They build up complex molecules such as protein from simpler
        compounds.