Fig 4.

Distributions of cycle times q(T) in the single-path (a and b) and double-path (c and d) models. The parameters of the single-path model are ξ = 0.1 (a) and ξ = 0.4 (b), and substrate concentration is S = 1 mmol⋅liter⁻¹. The parameters of the double-path model are ξ = 0.1 (c) and ξ = 0.4 (d); substrate concentration is S = 1.5 mmol⋅liter⁻¹. Other parameters are the same as in Fig. 2, except for φ_P = 0.55 and φ_EP = 0.2. The thick solid line in a shows distribution q(T) for the MM model with parameters k₁ = 10 s⁻¹, k₋₁ = 9 s⁻¹, and k₂ = 2.483 s⁻¹.