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