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