A) go in different directions B) slow down C) speed up D) stop
A) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration B) one kind of enzymes that promotes thousands of different chemical reactions C) approximately 100 kinds of enzymes, each promoting a different chemical reaction D) thousands of different enzymes, each prompting a different reaction
A) alter equilibrium conditions B) not be reused C) break down more starch molecules D) change its shape to adapt to different reactant
A) participating in chemical reactions B) lowering the pH C) increasing the temperature D) changing the ionic concentration
A) alters the active site of the enzyme B) increases the concentration of the enzyme C) changes the pH of the system D) neutralizes the acids and bases in the system
A) enzymes are quickly used up B) they have to have some way to use up the protein that they consume C) most cellular reactions require a specific, unique enzyme D) they have to have some way to use up the protein that they consume
A) temperature B) pH C) concentration of reactants D) ionic conditions
A) -ene B) -ose C) -ase D) -ite
A) all choices are correct B) speed up chemical reactions C) are affected by temperature and pH D) are proteins
A) combining with excess hydrogen to form gaseous wastes B) absorbing water released when polymers are formed C) affecting the rate at which reactions occur D) providing the substrate required for the reaction to occur
A) speed of the reaction B) pH of the reaction C) temperature of the reaction D) products of the reaction
A) pH of the environment energy required B) amount of activation C) function of the reactants D) structure of the enzyme
A) enzymes B) ions C) sugars D) reactants
A) rate B) direction C) equilibrium D) pH
A) in a high-saline environment B) under low pressure C) at low temperatures D) within a limited pH range
A) electrical energy B) mechanical energy C) activation energy D) chemical energy
A) the lock-and-key model of enzyme action does not apply to amylase B) amylase is denatured at temperature below 37 degrees C C) the optimum temperature for amylase is 37 degrees C D) amylase can function only in the small intestine
A) organic molecule B) substrate C) active site D) inactive site
A) activation energy B) inhibitor C) catalyst D) active site
A) enzymes are sent to specific substrates by ribosomes B) most enzymes can catalyze many different reactions C) different enzymes are made in specific areas of the cytoplasm D) enzymes can only bind to specific substrates
A) vacuole formation B) enzyme specificity C) . pinocytosis D) sharing of electrons
A) carbohydrates B) nucleotides C) proteins D) lipids
A) permanently blind to reactants, allowing a reaction to occur B) prevent reactions from occurring spontaneously C) require activation energy for a reaction to occur D) raise the activation energy until a reaction begins
A) manganese dioxide B) lipid C) galactose D) protease
A) pH of the environment of the reaction B) number of enzyme molecules present C) temperature of the environment of the reaction D) size of the substrate molecule |