A) slow down B) go in different directions C) speed up D) stop
A) one kind of enzymes that promotes thousands of different chemical reactions B) approximately 100 kinds of enzymes, each promoting a different chemical reaction C) thousands of different enzymes, each prompting a different reaction D) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration
A) change its shape to adapt to different reactant B) alter equilibrium conditions C) break down more starch molecules D) not be reused
A) increasing the temperature B) participating in chemical reactions C) changing the ionic concentration D) lowering the pH
A) increases the concentration of the enzyme B) alters the active site of the enzyme C) neutralizes the acids and bases in the system 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) enzymes are quickly used up D) they have to have some way to use up the protein that they consume
A) pH B) ionic conditions C) temperature D) concentration of reactants
A) -ase B) -ose C) -ene D) -ite
A) speed up chemical reactions B) are proteins C) are affected by temperature and pH 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) speed of the reaction B) products of the reaction C) pH of the reaction D) temperature of the reaction
A) function of the reactants B) amount of activation C) pH of the environment energy required D) structure of the enzyme
A) ions B) enzymes C) sugars D) reactants
A) rate B) direction C) pH D) equilibrium
A) within a limited pH range B) at low temperatures C) under low pressure D) in a high-saline environment
A) mechanical energy B) electrical energy C) activation energy D) chemical energy
A) amylase is denatured at temperature below 37 degrees C B) the optimum temperature for amylase is 37 degrees C C) the lock-and-key model of enzyme action does not apply to amylase D) amylase can function only in the small intestine
A) active site B) organic molecule C) inactive site D) substrate
A) catalyst B) activation energy C) active site D) inhibitor
A) enzymes can only bind to specific substrates B) most enzymes can catalyze many different reactions C) enzymes are sent to specific substrates by ribosomes D) different enzymes are made in specific areas of the cytoplasm
A) enzyme specificity B) . pinocytosis C) vacuole formation D) sharing of electrons
A) proteins B) carbohydrates C) nucleotides D) lipids
A) require activation energy for a reaction to occur B) prevent reactions from occurring spontaneously C) raise the activation energy until a reaction begins D) permanently blind to reactants, allowing a reaction to occur
A) manganese dioxide B) protease C) lipid D) galactose
A) number of enzyme molecules present B) temperature of the environment of the reaction C) size of the substrate molecule D) pH of the environment of the reaction |