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