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