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