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) approximately 100 kinds of enzymes, each promoting a different chemical reaction C) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration 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) participating in chemical reactions B) increasing the temperature C) changing the ionic concentration D) lowering the pH
A) alters the active site of the enzyme B) changes the pH of the system C) increases the concentration of the enzyme D) neutralizes the acids and bases in the system
A) enzymes are quickly used up 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) most cellular reactions require a specific, unique enzyme
A) pH B) ionic conditions C) concentration of reactants D) temperature
A) -ene B) -ase C) -ite D) -ose
A) are affected by temperature and pH B) are proteins C) all choices are correct D) speed up chemical reactions
A) combining with excess hydrogen to form gaseous wastes B) absorbing water released when polymers are formed C) affecting the rate at which reactions occur D) providing the substrate required for the reaction to occur
A) temperature of the reaction B) pH of the reaction C) speed of the reaction D) products of the reaction
A) amount of activation B) pH of the environment energy required C) function of the reactants D) structure of the enzyme
A) sugars B) enzymes C) reactants D) ions
A) equilibrium B) pH C) direction D) rate
A) in a high-saline environment B) within a limited pH range C) at low temperatures D) under low pressure
A) chemical energy B) activation energy C) mechanical energy D) electrical energy
A) amylase can function only in the small intestine B) amylase is denatured at temperature below 37 degrees C C) the lock-and-key model of enzyme action does not apply to amylase D) the optimum temperature for amylase is 37 degrees C
A) substrate B) organic molecule C) inactive site D) active site
A) catalyst B) active site C) activation energy D) inhibitor
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) vacuole formation B) sharing of electrons C) enzyme specificity D) . pinocytosis
A) proteins B) carbohydrates C) lipids D) nucleotides
A) prevent reactions from occurring spontaneously B) permanently blind to reactants, allowing a reaction to occur C) require activation energy for a reaction to occur D) raise the activation energy until a reaction begins
A) galactose B) lipid C) manganese dioxide D) protease
A) number of enzyme molecules present B) size of the substrate molecule C) pH of the environment of the reaction D) temperature of the environment of the reaction |