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