Effector molecule binding changes the behavior of enzymes by altering the equilibrium between the tense (T) state and the relaxed (R) state. Effectors are classified as either homotropic or heterotropic.

Match each description with homotropic effectors(1), heterotropic effectors(2), or both(3). Some statements may not describe either type of effector.

a) an enzyme substrate

b) accounts for the sigmoidal nature of a velocity versus substrate concentration curve

c) alters the Vmax of an enzyme

d) works by altering the T/R ration

e) alters the Km of an enzyme

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

the correct answer is:

a. formation of precipitation

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;