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