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