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