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