Plant cell structures and their definitions.

Plant cell structures and their definitions.

1. rough endoplasmic reticulum (ER)

   • a series of connected flattened sacs that plays a central role in protein synthesis because it has ribosomes attached to it and it transports proteins.

2. smooth endoplasmic reticulum (ER)

   • the synthesis of lipids, steroid hormoones, detoxification of harmful metabolic byproducts and storage of calcium ion. does not have ribosomes.

3. golgi apparatus

   • a group of flatten disc-like structures located close to the ER

4. nucleus

   • contains genetic material and controls the activity of the cell.

5. nucleolus