Overview of experimental data breakdown. A, Growth course biomass composition (proteins, nucleotides, lipids, and carbohydrates) under photoautotrophy. B, Biomass composition under heterotrophy. C, Carbohydrate composition under photoautotrophy. D, Lipid distribution under heterotrophy. Experimental and predicted growth rates for C. vulgaris in heterotrophy (McConnell and Antoniewicz, 2016; Zuñiga et al., 2016).