Figure 3From: Modeling the dependence of respiration and photosynthesis upon light, acetate, carbon dioxide, nitrate and ammonium in Chlamydomonas reinhardtiiusing design of experiments and multiple regression Oxymetric (a) and chlorophyll fluorescence (b) traces and related calculations for a DOE center point. Displayed measurements are those of item 4 in Additional file 1. The small vertical bold dotted lines define the zones which were used for rate determinations. AU, arbitrary unit. [P], protein concentration of algal suspension. SP, saturating light pulse.Back to article page