A system to unambiguously describe the configurations of molecules with more than one asymmetric center was devised in 1956 by Robert Cahn, Christopher Ingold, and Vladimir Prelog. In the Cahn–Ingold– Prelog or RS system

TLS Online TPP Program

#Id: 8184

#Section 3: Genetics, Cellular and Molecular Biology

β oxidation

In mammalian cells, occurs in mitochondria & peroxisomes.

In yeast and plant cells, occurs in peroxisomes.

TLS Online TPP Program

#Id: 8183

#Section 3: Genetics, Cellular and Molecular Biology

β oxidation 

A major function of the oxidation reactions is the breakdown of fatty acid molecules.

TLS Online TPP Program

#Id: 8182

#Section 3: Genetics, Cellular and Molecular Biology

When excess H2O2 accumulates in the cell, catalase converts it to H2O through the reaction.

TLS Online TPP Program

#Id: 8181

#Section 3: Genetics, Cellular and Molecular Biology

Catalase uses the H2O2 to oxidize a variety of other substrates (formic acid, formaldehyde, and alcohol) by the “peroxidation” reaction.

TLS Online TPP Program

#Id: 8180

#Section 3: Genetics, Cellular and Molecular Biology

Peroxisomes carry out oxidation reactions leading to the production of hydrogen peroxide.

TLS Online TPP Program

#Id: 8179

#Section 3: Genetics, Cellular and Molecular Biology

Peroxisomes contain oxidative enzymes: catalase and urate oxidase.