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