2 Endoplasmic Reticulum

Question 1

Function

Answer 1

Synthesis, folding, modification, and transportation of proteins.

Question 2

Found

Answer 2

Eukaryotic cells
Located in cytoplasm
Animal and Plant cells
Size depends on amount of proteins produced.
NOT IN PROKARYOTIC CELLS

Question 3

ROUGH ER: name

Answer 3

Ribosomes give rough appearance.

Question 4

RER: location

Answer 4

Ribosomes give rough appearance.

Question 5

RER lumen

Answer 5

• site of protein folding, modification and assembly.
• PROTEIN SYNTHESIS: MRNA-NUCLEUS-RIBOSOMES ( on the surface of RER )
• RER transports the protein to the golgi appartus in which the protein gets processed further.

Question 6

What kind of cells has RER?

Answer 6

Muscles- proteins to keep muscles moving
​Pancreas- for Insulin ( large amounts of ER )
White Blood Cells- ( large amounts )

Question 7

SER: name

Answer 7

no ribosomes

Question 8

SER: function

Answer 8

-Involved in synthesis of lipids ( creates new cellular membranes )
Cholesterol
phospholipids
-Synthesis of steroid hormones from cholesterol
-Acts as storage organelle- creation and storage of lipids and steroids

Question 9

SER: Location

Answer 9

Can be found in livers to contribute to detoxification, the ovaries and testes.

Question 10

BOTH RER AND SER

Answer 10

-They have the same type of membranes
form sacs called cisternae
-Cisternae: where the proteins are synthesized and collected in the cisternae.
-Where proteins are collected and pinched through the vesicles.