A) slow down B) stop 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) thousands of different enzymes, each prompting a different reaction D) approximately 100 kinds of enzymes, each promoting a different chemical reaction
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) neutralizes the acids and bases in the system B) alters the active site of the enzyme C) increases the concentration of the enzyme D) changes the pH of the system
A) enzymes are quickly used up B) most cellular reactions require a specific, unique enzyme C) they have to have some way to use up the protein that they consume D) they have to have some way to use up the protein that they consume
A) pH B) concentration of reactants C) temperature D) ionic conditions
A) -ase B) -ene C) -ose D) -ite
A) are affected by temperature and pH B) speed up chemical reactions C) are proteins D) all choices are correct
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) speed of the reaction B) pH of the reaction C) products of the reaction D) temperature of the reaction
A) function of the reactants B) pH of the environment energy required C) amount of activation D) structure of the enzyme
A) enzymes B) reactants C) sugars D) ions
A) direction B) rate C) equilibrium D) pH
A) within a limited pH range B) at low temperatures C) under low pressure D) in a high-saline environment
A) electrical energy B) activation energy C) mechanical energy D) chemical 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) active site B) organic molecule C) substrate D) inactive site
A) active site B) activation energy C) inhibitor D) catalyst
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) enzyme specificity B) sharing of electrons C) . pinocytosis D) vacuole formation
A) proteins B) lipids C) nucleotides D) carbohydrates
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) lipid C) galactose D) manganese dioxide
A) temperature of the environment of the reaction B) number of enzyme molecules present C) pH of the environment of the reaction D) size of the substrate molecule |