NOVELTY - Producing (P1) fatty acid ethyl esters from biomass polymer involves: a) providing a host cell comprises at least one recombinant nucleic acid encoding a thioesterase, a fatty acyl-coenzyme A (coA) synthetase, an acyl-transferase, an alcohol dehydrogenase, a pyruvate decarboxylase, and at least one biomass polymer-degrading enzyme, b) culturing the host cell in a medium to form a culture such that the recombinant nucleic acids are expressed in the cell, and c) extracting fatty acid ethyl esters from the culture.    USE - For producing fatty acid ethyl esters, fatty alcohols, and fatty aldehydes from a biomass polymer (claimed); for producing biodiesel equivalents; as a fuel, such as a fuel in a combustion reaction; in a combustible composition; as fuels as chemical source of energy that can used as an alternative to petroleum-derived fuels, and ethanol; in the synthesis of alkanes, alcohols, and esters for various uses as a renewable fuel; as precursors in the synthesis of therapeutics, or high-value oils, such as a cocoa butter equivalent; in soaps, detergents, cosmetic additives, pheromones, and flavoring compounds, and potentially as biofuel.    ADVANTAGE - The method is a bioprocess provides biodiesel equivalents and other fatty acid derived chemicals directly form an input of cellulosic biomass without the addition of exogenous substrates or enzymes.    DETAILED DESCRIPTION - Producing (P1) fatty acid ethyl esters from a biomass polymer involves: a) providing a host cell comprises at least one recombinant nucleic acid encoding a thioesterase, a fatty acyl-coA synthetase, an acyl-transferase, an alcohol dehydrogenase, a pyruvate decarboxylase, and at least one biomass polymer-degrading enzyme, where the biomass polymer-degrading enzymes are secreted from the host cell, b) culturing the host cell in a medium to form a culture such that the recombinant nucleic acids are expressed in the cell, where the medium comprises a biomass polymer as a carbon source for the host cell, and c) extracting fatty acid ethyl esters from the culture. INDEPENDENT CLAIMS are included for the following:    (1) producing (P2) fatty alcohols from a biomass polymer involving: a) providing a host cell, where the host cell comprises at least one recombinant nucleic acid encoding a thioesterase, a fatty acyl-coA synthetase, a fatty alcohol-forming fatty acyl-coA reductase, and at least one biomass polymer-degrading enzyme, where the biomass polymer-degrading enzymes are secreted from the host cell, b) culturing the host cell in a medium to form a culture such that the recombinant nucleic acids are expressed in the cell, where the medium comprises a biomass polymer as a carbon source for the host cell, and c) extracting fatty alcohols from the culture;    (2) producing (M3) fatty aldehydes from a biomass polymer involving: a) providing a host cell, where the host cell comprises at least one recombinant nucleic acids encoding a thioesterase, a fatty acyl-coA synthetase, a fatty acyl-coA reductase, and at least one biomass polymer-degrading enzymes, where the biomass polymer-degrading enzymes are secreted from the host cell, b) culturing the host cell in a medium to form a culture such that the recombinant nucleic acids are expressed in the cell, where the medium comprises a biomass polymer as a carbon source for the host cell, and c) extracting fatty aldehydes from the culture;    (3) new a genetically modified host cell (C2) comprising at least one recombinant nucleic acid encoding a thioesterase, a fatty acyl-coA synthetase, an acyl-transferase, an alcohol dehydrogenase, a pyruvate decarboxylase, and at least one biomass polymer-degrading enzyme, where the biomass polymer-degrading enzymes are secretory enzymes;    (4) new a genetically modified host cell (C3), comprising at least one recombinant nucleic acids encoding a thioesterase, a fatty acyl-coA synthetase, a fatty alcohol-forming fatty acyl-coA reductase, and at least one biomass polymer-degrading enzyme, where the biomass polymer-degrading enzymes are secretory enzymes; and    (5) new a genetically modified host cell (C4) comprising at least one recombinant nucleic acid encoding a thioesterase, a fatty acyl-coA synthetase, a fatty acyl-coA reductase, and at least one biomass polymer-degrading enzyme, where the biomass polymer-degrading enzymes are secretory enzymes.