Positive Cooperativity Means

Positive cooperativity means

A) Binding at one site increases the affinity of binding at a second vacant site
B) Binding at a site on the protein is independent of occupancy of other sites.
C) Protein molecules bind together to allow oxygen binding
D) Protein-protein interaction is necessary for oxygen binding
E) The slope of the dissociation curve is m axim al at lowest P_aO2