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