Question

rough endoplasmic reticulum (rough er) is a large system of interconnected, membranous, and convoluted sacks that are located in the cells cytoplasm. the rough er is connected to the outer nuclear membrane and to the smooth er. rough er is covered with ribosomes that give it a rough appearance while the smooth er does not have ribosomes on its surface. rough er transports materials through the cell and produces proteins in sacks called cisterns which are sent to the golgi body, or inserted into the cell membrane. the golgi apparatus or golgi complex is a flattened, layered, sac - like organelle that looks like a stack of pancakes. the golgi body modifies & packages proteins and carbohydrates into membrane - bound vesicles for \export\ from the cell. smooth er makes proteins and lipids that will be exported by the cell. it also controls the calcium level in muscles and detoxifies poisons, alcohol, and drugs. 14. rough er is connected to the ____ membrane and to __ er. 15. how does the appearance of rough er differ from smooth er? 16. the function (job) of rough er is to __ and __. 17. the golgi body __ and ____ proteins for export out of the cell. 18. give 3 jobs for smooth er. job 1 ; job 2 ; job 3

Explanation:

1. The text states that rough ER is connected to the outer nuclear membrane and to the smooth ER.
2. The text mentions that rough ER is covered with ribosomes giving it a rough appearance while smooth ER does not have ribosomes on its surface.
3. The text says rough ER produces proteins in cisterns and transports materials through the cell.
4. The text indicates that the Golgi body modifies and packages proteins for export from the cell.
5. The text lists that smooth ER makes proteins and lipids for export, controls calcium levels in muscles, and detoxifies poisons, alcohol, and drugs.

Answer:

1. outer nuclear; smooth
2. Rough ER has ribosomes on its surface giving it a rough appearance, smooth ER does not have ribosomes on its surface.
3. produce proteins; transport materials
4. modifies; packages
5. makes proteins and lipids for export; controls calcium level in muscles; detoxifies poisons, alcohol, and drugs