Where does fatty acid synthesis occur in the cell?
in the cytoplasm
Fatty acid synthesis occurs in the cytoplasm of the cell. Specifically, it occurs in the cytosol, which is the gel-like fluid that surrounds the cellular organelles. The enzymes and cofactors required for fatty acid synthesis are present in the cytosol, including acetyl-CoA carboxylase which is a key enzyme in the process. Additionally, the cytosol contains the necessary building blocks for fatty acid synthesis, such as acetyl-CoA and malonyl-CoA. Fatty acid synthesis occurs in multiple steps and involves the addition of two-carbon units from malonyl-CoA onto an acetyl-CoA molecule, followed by several cycles of elongation to form a long-chain fatty acid. Ultimately, these fatty acids may be used for energy production, stored in the form of triglycerides, or incorporated into cell membranes.
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