quorum sensing
taxis
chemotaxis
ligands
receptors
signal transduction
ligand-gated ion channel
catalytic/enzyme-linked receptor
G-protein-linked receptor
secondary messengers
homeostasis
negative feedback pathway
positive feedback pathway
cell division
G0 phase
cell cycle
interphase
mitosis
G
G1 phase
S phase
G2 phase
sister chromatids
chromosome
homologous pair