Overview of cycle between autotrophs and heterotrophs. A heterotroph (/ËhÉtÉrÉµtroÊf/ ; á¼ÏÎµÏÎ¿Ï heteros = another, different and ÏÏÎ¿ÏÎ® trophe = nutrition) is an organism that cannot fix carbon and uses organic carbon for growth.ost heterotrophs are chemoorganoheterotrophs (or simply organotrophs) who utilize organic compounds both as a carbon source and an energy source. The term heterotroph very often refers to chemoorganoheterotrophs.
Fumaric acid or trans-butenedioic acid is the chemical compound with the formula HO 2 CCH=CHCO 2 H. This white crystalline compound is one of two isomeric unsaturated dicarboxylic acids, the other being maleic acid.umaric acid has been used a food acidulant since 1946. It is approved for use as a food additive in the EU, USA and Australia and New Zealand. As a food additive, it is used as an acidity regulator and can be denoted by the E number E297.
It is used as acidity regulator in food products. Fumaric acid esters are used to treat psoriasis, as it has been suggested that the condition is caused by an impairment of fumaric acid production in the skin.t finds use as a food preservative and acidity regulator. Like tartaric acid, calcium tartrate has two asymmetric carbons, hence it has two chiral isomers and a non-chiral isomer. Most calcium tartrate of biological origin is the chiral levorotatory (â) isomer.