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