What two things are added to NADP+ to convert it into NADPH? H+ and electrons electrons and ATP H+ and ATP H+ and CO2 electrons and CO2 Solution H+ and electrons. NADP (Nicotinamide Adenine Dinucleotide Phosphate) exists in two forms: NADP+is the oxidized form andNADPHis the reduced form. NADP+ takes 2 electrons from Ferredoxin at the end of the electron transport chain to generate NADP. An H+ ion in the stroma binds through the extra electron, generating NADPH. All of this is facilitated by Ferredoxin-NADP+reductase..