The smooth endoplasmic reticulum (ser) has a variety of functions that center around the synthesis of

The smooth ER (SER) has a variety of functions that center around the synthesis of lipids.

The main function of the SER is the synthesizes of the lipids, phospholipids, and steroids. So, cells which secrete these products, like in the testes and ovaries have a lot of SER. SER also carries out the metabolism of carbohydrates, detoxification of natural metabolism products and of alcohol and drugs.  

Answer;

-Lipids and carbohydrates

The smooth ER (SER) has a variety of functions that center around the synthesis of lipids and carbohydrates.

Explanation;

-The endoplasmic reticulum serves many general functions, including the folding of protein molecules in sacs called cisternae and the transport of synthesized proteins in vesicles to the Golgi apparatus.

-The smooth endoplasmic reticulum, or smooth ER, is an organelle found in both animal cells and plant cells. An organelle is a sub-unit within a cell that has a specialized function. The main function of the smooth ER is to make cellular products like hormones and lipids.