Smooth ER

Question 1

ER

Answer 1

• complex system of parallel double membrane,
• form flattened sacs with interconnected fluid filled spaces between them called cisternae
• connected with the nuclear envelope
• allows transport of materials through the cell

Question 2

Smooth ER - structure

Answer 2

• membrane without ribosomes
• enzymes on the surface catalyses the synthesis of lipids
• large number of smooth ER within cells responsible for secreting / producing hormones