Th Endoplasmic Reticulum (subsection of 3.4)

Question 1

What is the structure of the endoplasmic reticulum?(ER)?

Answer 1

A 3D system of membranes inside cells

Question 2

What is the function of the endoplasmic reticulum (ER)?

Answer 2

To help make and transport molecules

Question 3

What is the structure of the rough endoplasmic reticulum (RER)?

Answer 3

It has ribosomes on its surface

Question 4

What is the function of the rough endoplasmic reticulum (RER)?

Answer 4

• Provides a large surface area for making proteins and glycoproteins
• Provides a pathway for the transport of materials around the cell (proteins)

Question 5

What is the structure of the smooth endoplasmic reticulum? (SER)

Answer 5

• It doesn’t have ribosomes on its surface
• Tube shaped

Question 6

What is the function of the smooth endoplasmic reticulum (SER)?

Answer 6

• To synthesize, store and transport lipids (fats)
• To synthesize,store and transport carbohydrates (sugars)

Question 7

What do cells with large amounts of carbohydrates, lipids and proteins have a lot of?

Answer 7

Endoplasmic reticulum (ER)

Question 8

What is the function of ribosomes being attached to the surface of the RER do?

Answer 8

To help make proteins

Question 9

What is the structure of the ‘cisternae’

Answer 9

Flattened sacs

Question 10

What does the ‘cisternae’ contain?

Answer 10

A range of different enzymes