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