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