A) slow down B) go in different directions C) stop D) speed up
A) thousands of different enzymes, each prompting a different reaction B) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration C) approximately 100 kinds of enzymes, each promoting a different chemical reaction D) one kind of enzymes that promotes thousands of different chemical reactions
A) alter equilibrium conditions B) break down more starch molecules C) not be reused 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) alters the active site of the enzyme B) changes the pH of the system 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) temperature B) pH C) concentration of reactants D) ionic conditions
A) -ite B) -ase C) -ose D) -ene
A) all choices are correct B) speed up chemical reactions C) are affected by temperature and pH D) are proteins
A) absorbing water released when polymers are formed B) providing the substrate required for the reaction to occur C) affecting the rate at which reactions occur D) combining with excess hydrogen to form gaseous wastes
A) temperature of the reaction B) pH of the reaction C) products of the reaction D) speed 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) sugars B) reactants C) enzymes D) ions
A) equilibrium B) rate C) pH D) direction
A) at low temperatures B) within a limited pH range C) in a high-saline environment D) under low pressure
A) chemical energy B) electrical energy C) activation energy D) mechanical 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 can function only in the small intestine D) amylase is denatured at temperature below 37 degrees C
A) substrate B) organic molecule C) inactive site D) active site
A) catalyst B) activation energy C) inhibitor D) active site
A) most enzymes can catalyze many different reactions B) different enzymes are made in specific areas of the cytoplasm C) enzymes are sent to specific substrates by ribosomes D) enzymes can only bind to specific substrates
A) vacuole formation B) sharing of electrons C) . pinocytosis D) enzyme specificity
A) proteins B) lipids C) nucleotides D) carbohydrates
A) permanently blind to reactants, allowing a reaction to occur B) require activation energy for a reaction to occur C) prevent reactions from occurring spontaneously D) raise the activation energy until a reaction begins
A) protease B) manganese dioxide C) galactose D) lipid
A) size of the substrate molecule B) temperature of the environment of the reaction C) pH of the environment of the reaction D) number of enzyme molecules present |