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