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