Chapter 05: The Working Cell Dynamic Study Module Study Guide Graded A+

One model of the cell membrane is that it is a "fluid mosaic." What does this mean? -It consists of nucleotides, proteins, and ions suspended in a fluid phospholipid bilayer. -It consists of small, nonpolar molecules suspended in a fluid phospholipid bilayer. -It consists of phospholipids suspended in a bilayer of proteins. -It consists of ions and carbohydrates suspended in a bilayer of of proteins. -It consists of proteins suspended in a fluid phospholipid bilayer. {Ans: It consists of proteins suspended in a fluid phospholipid bilayer.}Endergonic reactions __________ energy and result in products that have __________ potential energy than the reactants. -release; lower -require; lower -require; higher -release; variable levels of -release; higher {Ans: require; higher}Building a molecule of ATP is an __________ process. Hydrolyzing a molecule of ATP is an __________ process. This cycle is an example of __________. -endergonic; exergonic; metabolism -endergonic; exergonic; energy coupling -exergonic; endergonic; energy coupling -endergonic; endergonic; energy coupling -exergonic; exergonic; metabolism {Ans: endergonic; exergonic; energy coupling}What is meant by the term "enzyme specificity"? -An enzyme is "used" only once. -An enzyme is specific for one temperature and pH range. -An enzyme catalyzes only one type of reaction. -An enzyme is