Which type of organelle or structure is primarily involved in the synthesis of oils, phospholipids, and steroids?

The basic building block of all of them is fatty acid in different chemical structures..
but those you mentioned each form in different places.. for example oil may form in Oil glands in Dermis ( Second layer of skin ) and steroids may be synthesized in the adrenal cortex or male gonads ( based on its type ) ... ツ

The need activity of the nurse is to suction discharges from the trachea. current treatment approaches in the pressing consideration facilities or crisis offices are corticosteroids and nebulized epinephrine; steroids have demonstrated advantageous in extreme, direct, and even gentle croup. in the clear instances of croup, anti-microbials are not endorsed, as the etiology is viral