Acetyl CoA carboxylase enzyme is present in ?
Cytosol
Mitochondria
Nucleus
Lysosome
Ans. is 'a' i.e., Cytosol This question is slightly different from previous one. The major acetyl CoA carboxylase which is involved in lipogenesis is acetyl CoA Carboxylase-1 (ACC-1). It is a cytosolic enzyme. In general acetyl CoA carboxylase refers to ACC-1. There is one more isoform of acetyl CoA carboxylase, i.e. ACC-2. Which is present in muscle, allowing muscle to regulate b-oxidation. ACC-2 is present in mitochondria.