SubstanceConnector Connector between substances and reactions
	SubstrateConnector Connector between substances and reactions (substrate side of reaction)
	ProductConnector Connector between substances and reactions (product side of reaction)
	ActivatorConnector Connector between activators and reactions
	InhibitorConnector Connector between inhibitors and reactions
	ModifierConnector Connector between general modifiers and reactions

This package contains connection points used in the BioChem library.

The reaction between two or more substances is described by the molar flow rate between the involved substances. The molar flow rate is typically expressed as a function of the concentration or amount of substance. Therefore the interface or nodes contain not only the molar flow rate and concentration, but also the volume, in order to make it possible to calculate the amount of substance if needed.

The interfaces in the library are all identical except for the graphics and the volume variable V. The different graphics are used to indicate if a respective substance should be seen as a substrate, product, modifier, etc., in a reaction. The variable V is an output variable in the SubstanceConnector and an input variable in all the other nodes. Thus, on the same hierarchy level, the SubstanceConnector may only be connected to the other nodes, and the other nodes may only connect to the SubstanceConnector.

The variables available in each connection point are described below.

Variables in Nodes

c		:	Concentration [mol]
r		:	Reaction rate [mol/s]
V		:	Volume [l]