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