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