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