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