A) stop B) slow down C) go in different directions D) speed up
A) one kind of enzymes that promotes thousands of different chemical reactions B) approximately 100 kinds of enzymes, each promoting a different chemical reaction C) thousands of different enzymes, each prompting a different 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) increasing the temperature B) participating in chemical reactions C) lowering the pH D) changing the ionic concentration
A) changes the pH of the system B) alters the active site of the enzyme C) increases the concentration of the enzyme 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) concentration of reactants B) pH C) ionic conditions D) temperature
A) -ase B) -ite C) -ose D) -ene
A) are affected by temperature and pH B) are proteins C) all choices are correct D) speed up chemical reactions
A) affecting the rate at which reactions occur B) combining with excess hydrogen to form gaseous wastes C) absorbing water released when polymers are formed D) providing the substrate required for the reaction to occur
A) temperature of the reaction B) pH of the reaction C) speed of the reaction D) products of the reaction
A) amount of activation B) pH of the environment energy required C) structure of the enzyme D) function of the reactants
A) ions B) enzymes C) reactants D) sugars
A) equilibrium B) pH C) rate D) direction
A) in a high-saline environment B) within a limited pH range C) at low temperatures D) under low pressure
A) activation energy B) electrical energy C) chemical energy D) mechanical 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) substrate C) organic molecule D) inactive site
A) active site B) inhibitor C) catalyst D) activation energy
A) different enzymes are made in specific areas of the cytoplasm B) most enzymes can catalyze many different reactions C) enzymes can only bind to specific substrates D) enzymes are sent to specific substrates by ribosomes
A) sharing of electrons B) . pinocytosis C) vacuole formation D) enzyme specificity
A) lipids B) proteins C) nucleotides D) carbohydrates
A) require activation energy for a reaction to occur B) permanently blind to reactants, allowing a reaction to occur C) prevent reactions from occurring spontaneously D) raise the activation energy until a reaction begins
A) lipid B) protease C) manganese dioxide D) galactose
A) temperature of the environment of the reaction B) size of the substrate molecule C) number of enzyme molecules present D) pH of the environment of the reaction |