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