A) speed up B) stop C) slow down D) go in different directions
A) thousands of different enzymes, each prompting a different reaction B) one kind of enzymes that promotes thousands of different chemical reactions C) approximately 100 kinds of enzymes, each promoting a different chemical reaction 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) changing the ionic concentration B) lowering the pH C) participating in chemical reactions D) increasing the temperature
A) alters the active site of the enzyme B) neutralizes the acids and bases in the system C) changes the pH of the system D) increases the concentration 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) concentration of reactants B) pH C) temperature D) ionic conditions
A) -ose B) -ene C) -ase D) -ite
A) speed up chemical reactions B) are proteins C) are affected by temperature and pH D) all choices are correct
A) absorbing water released when polymers are formed B) combining with excess hydrogen to form gaseous wastes C) affecting the rate at which reactions occur D) providing the substrate required for the reaction to occur
A) pH of the reaction B) speed of the reaction C) temperature of the reaction D) products 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) reactants B) sugars C) enzymes D) ions
A) direction B) equilibrium C) pH D) rate
A) at low temperatures B) within a limited pH range C) in a high-saline environment D) under low pressure
A) mechanical energy B) chemical energy C) electrical energy D) activation energy
A) the lock-and-key model of enzyme action does not apply to amylase B) amylase can function only in the small intestine C) amylase is denatured at temperature below 37 degrees C D) the optimum temperature for amylase is 37 degrees C
A) organic molecule B) substrate C) inactive site D) active site
A) inhibitor B) activation energy C) catalyst D) active site
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) vacuole formation B) . pinocytosis C) sharing of electrons D) enzyme specificity
A) proteins B) carbohydrates C) lipids D) nucleotides
A) permanently blind to reactants, allowing a reaction to occur B) require activation energy for a reaction to occur C) raise the activation energy until a reaction begins D) prevent reactions from occurring spontaneously
A) protease B) lipid C) galactose D) manganese dioxide
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 |