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