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