Module 2 Section 1 - Organelles Working Together

Question 1

where are protein made

Answer 1

ribosomes

Question 2

what do ribosomes on the rough endoplasmic reticulum make

Answer 2

proteins that are excreted or attached to the cell membrane

Question 3

what do free ribosomes in the cytoplasm make

Answer 3

proteins that stay in the cytoplasm

Question 4

what happens to new proteins that are produced at the rough er

Answer 4

new proteins are folded and processed (e.g. sugar chain added) in the rough er

Question 5

what happens after proteins are folded and processed in the rough er

Answer 5

they are transported from the rough er to the golgi apparatus in vesicles

Question 6

what happens at the golgi apparatus

Answer 6

proteins may undergo further processing (e.g. sugar chains are trimmed or more are added)

Question 7

after further processing in the golgi apparatus what happens to the proteins

Answer 7

they enter more vesicles to be transported around the cells. e.g. glycoproteins in mucus move to the cell surface and are secreted

Question 8

what are the network of protein threads in the cytoplasm called

Answer 8

the cytoskeleton

Question 9

in eukaryotic cells the protein threads are arranged as….

Answer 9

microfilaments(small solid strands) and microtubules(tiny protein cylinders)

Question 10

the cytoskeleton has four main functions

Answer 10

-microfilaments and microtubules support cells organelles, keeping them in position
-help strengthen the cell and maintain shape
-responsible for movement of materials
-can cause the cell to move