Multi-physics modeling for ion homeostasis in multi-compartment plant cells using an energy function
Fig 2
Electric representation of a two-membrane complex.
Each capacitor represents a membrane and each compartment corresponds to a node in the circuit. Variations of ion amounts in each compartment result in adding or removing charges in these compartments. The circuit representation suggests that adding charged particles into compartment 2 contributes to charging both capacitors C1 and C2. This circuit analogy is used to evaluate the electrostatic energy term.