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