A) slow down B) go in different directions C) stop D) speed up
A) one kind of enzymes that promotes thousands of different chemical reactions B) thousands of different enzymes, each prompting a different reaction C) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration D) approximately 100 kinds of enzymes, each promoting a different chemical reaction
A) break down more starch molecules B) change its shape to adapt to different reactant C) not be reused D) alter equilibrium conditions
A) changing the ionic concentration B) increasing the temperature C) participating in chemical reactions D) lowering the pH
A) changes the pH of the system B) alters the active site of the enzyme C) increases the concentration of the enzyme D) neutralizes the acids and bases in the system
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) concentration of reactants C) temperature D) ionic conditions
A) -ase B) -ene C) -ose D) -ite
A) are proteins B) are affected by temperature and pH C) all choices are correct 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) products of the reaction B) speed of the reaction C) temperature of the reaction D) pH of the reaction
A) function of the reactants B) pH of the environment energy required C) amount of activation D) structure of the enzyme
A) sugars B) reactants C) enzymes D) ions
A) rate B) direction C) pH D) equilibrium
A) under low pressure B) in a high-saline environment C) at low temperatures D) within a limited pH range
A) chemical energy B) mechanical energy C) electrical energy D) activation 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) inactive site B) organic molecule C) substrate D) active site
A) inhibitor B) catalyst C) activation energy D) active site
A) enzymes are sent to specific substrates by ribosomes B) most enzymes can catalyze many different reactions C) enzymes can only bind to specific substrates D) different enzymes are made in specific areas of the cytoplasm
A) . pinocytosis B) enzyme specificity C) sharing of electrons D) vacuole formation
A) proteins B) lipids C) carbohydrates D) nucleotides
A) require activation energy for a reaction to occur B) prevent reactions from occurring spontaneously C) raise the activation energy until a reaction begins D) permanently blind to reactants, allowing a reaction to occur
A) manganese dioxide B) galactose C) lipid D) protease
A) size of the substrate molecule B) temperature of the environment of the reaction C) pH of the environment of the reaction D) number of enzyme molecules present |