A) slow down B) speed up C) go in different directions D) stop
A) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration B) thousands of different enzymes, each prompting a different reaction 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) 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) participating in chemical reactions C) changing the ionic concentration D) increasing the temperature
A) changes the pH of the system B) alters the active site of the enzyme C) neutralizes the acids and bases in the system D) increases the concentration 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) they have to have some way to use up the protein that they consume D) enzymes are quickly used up
A) concentration of reactants B) ionic conditions C) pH D) temperature
A) -ite B) -ase C) -ose D) -ene
A) all choices are correct B) speed up chemical reactions C) are proteins D) are affected by temperature and pH
A) combining with excess hydrogen to form gaseous wastes B) providing the substrate required for the reaction to occur C) absorbing water released when polymers are formed D) affecting the rate at which reactions occur
A) speed of the reaction B) temperature of the reaction C) pH of the reaction D) products of the reaction
A) structure of the enzyme B) function of the reactants C) amount of activation D) pH of the environment energy required
A) ions B) sugars C) reactants D) enzymes
A) direction B) pH C) equilibrium D) rate
A) within a limited pH range B) in a high-saline environment C) at low temperatures D) under low pressure
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) active site B) substrate C) organic molecule D) inactive site
A) activation energy B) inhibitor C) catalyst D) active site
A) enzymes are sent to specific substrates by ribosomes B) different enzymes are made in specific areas of the cytoplasm C) enzymes can only bind to specific substrates D) most enzymes can catalyze many different reactions
A) . pinocytosis B) vacuole formation C) enzyme specificity D) sharing of electrons
A) lipids B) nucleotides C) proteins D) carbohydrates
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) protease B) manganese dioxide C) galactose D) lipid
A) size of the substrate molecule B) number of enzyme molecules present C) pH of the environment of the reaction D) temperature of the environment of the reaction |