Geobacter ferrireducens

Caccavo F, Coates JD, Rossello-Mora RA, et al. 1996. Geobacter ferrireducens, a physiologically distinct dissimilatory Fe(III)-reducing bacterinm. Arch Microbiol 165 3752-9. 

Some microbial metabolites/endogenous mediators are used as mediators by microbes. Some microbes such as Rhodoferax ferrireducens, Geobacter metal-lireducens, Shewanella putrefaciens and Geo-bacteriaceae sulferreducens are bioelectrochemically active. These microbes directly transfer electrons via the membrane. They have the capability to form a biofilm on the anode surface. Hence, in the presence of these microbes the anodes act as an electron acceptor. 

For the yield calculated in eq. 7-9, (a) what is the implied if the only fate of acetate is biomass production and generation of electricity (b) Bond and Lovley (2003) rep>orted a maximum Cf = 96.8% for Geobacter sulfurreducens using acetate, and Chaudhuri and Lovley (2003) found Cg = 83% for Rhodoferax ferrireducens using glucose. What does that imply about the cell yield ... 

---