A plasma membrane pump used for actively transporting molecules across the cell membrane is composed which of the following basic structural components?

Which of the following types of reactions would decrease the entropy within a cell? a. dehydration reaction, b. hydrolysis, c. respiration, d. digestion, e. catabolism.

Energy stored in the bonds that hold together the atoms and molecules of all substances is called a. kinetic energy. b. electrical energy. c. mechanical energy. d. chemical energy.

Adding more tributaries to a local river basin can have what effect?