Table 5 Constants for the reduced model containing medium and cells.

k₂ = 0.4

k_-2 = .07

iAs, medium to medium store (hr^-1)

k₃ = 0.45

k_-3 = 0.5

k₉ = 0.3

k_-9 = 0.05

iAs, medium to cells, cell to cell store (hr^-1)

k₄ = 0.2

k_-4 = 0.05

MMAs, medium to cells (hr^-1)

k₅ = 0.015

k_-5 = 0.2

DMAs, medium to cells (hr^-1)

K _m = 4.6

V _mαx = 22

methylation, iAs→ MMAs (μ M or μ M/hr)

K _m = 4.6

V _mαx = 2.75

methylation, MMAs → DMAs (μ M or μ M/hr)