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