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