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