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