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