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