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