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