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