A) slow down B) stop C) speed up D) go in different directions
A) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration B) thousands of different enzymes, each prompting a different reaction C) approximately 100 kinds of enzymes, each promoting a different chemical reaction D) one kind of enzymes that promotes thousands of different chemical reactions
A) alter equilibrium conditions B) not be reused C) change its shape to adapt to different reactant D) break down more starch molecules
A) increasing the temperature B) participating in chemical reactions C) changing the ionic concentration D) lowering the pH
A) increases the concentration of the enzyme B) alters the active site of the enzyme C) changes the pH of the system D) neutralizes the acids and bases in 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) pH B) concentration of reactants C) ionic conditions D) temperature
A) -ose B) -ase C) -ite D) -ene
A) speed up chemical reactions B) are affected by temperature and pH C) all choices are correct D) are proteins
A) affecting the rate at which reactions occur B) absorbing water released when polymers are formed C) combining with excess hydrogen to form gaseous wastes D) providing the substrate required for the reaction to occur
A) products of the reaction B) temperature of the reaction C) speed of the reaction D) pH of the reaction
A) pH of the environment energy required B) function of the reactants C) amount of activation D) structure of the enzyme
A) ions B) enzymes C) sugars D) reactants
A) equilibrium B) direction C) rate D) pH
A) at low temperatures B) within a limited pH range C) under low pressure D) in a high-saline environment
A) chemical energy B) electrical energy C) activation energy D) mechanical 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) amylase can function only in the small intestine D) the optimum temperature for amylase is 37 degrees C
A) organic molecule B) inactive site C) substrate D) active site
A) active site B) inhibitor C) catalyst D) activation energy
A) enzymes are sent to specific substrates by ribosomes B) most enzymes can catalyze many different reactions 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) nucleotides C) lipids D) proteins
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) protease B) manganese dioxide C) galactose D) lipid
A) temperature of the environment of the reaction B) pH of the environment of the reaction C) size of the substrate molecule D) number of enzyme molecules present |