Random Flashcards
(17 cards)
1
Q
What is the structure of the endoplasmic reticulum?
A
- extension of the NUCLEAR ENVELOPE
- made of membranous tubules and cisternae (sacs)
2
Q
What are cisternae
A
sacs
3
Q
What is the function of the rough ER
A
- the rough ER provides transport for proteins made from the ribosomes on its surface?
- Synthesize proteins
- Transport proteins
- Modify proteins
4
Q
What’s the function of the smooth ER
A
- synthesize lipids and steroids
5
Q
What’s breaks off of the ER and carrie’s products to the golgi body
A
- Small sacs
- Called vesicles
6
Q
(True / False)
There is ALWAYS one golgi body
A
False
7
Q
What is the structure of the golgi body?
A
- flattened stack of sacs
8
Q
What’s the function of the golgi body?
A
- Collects molecules
- Processes molecules
- Sorts molecules ready for transport in… GOLGI VESICLES
(especially proteins from rough ER)
9
Q
Where can golgi vesicles go
A
- to other parts of the cell
- outside of the cell (secretion)
10
Q
What makes lysosomes?
A
Golgi vesicles
11
Q
What’s the structure of a lysosome?
A
- spherical sacs, surrounded by a single membrane, no internal structure
- digestive enzymes
12
Q
Average diameter of a lysosome
A
0.1 - 0.5um
13
Q
what do lysosomes contain?
A
- Digestive (HYDROLYTIC) enzymes which must be kept separate from the rest of the cell
14
Q
What’s the function of a lysosome?
A
- Break down/ digest old cell parts(unwanted structures) or whole cells
15
Q
What is the mitochondria surrounded by?
A
- double membrane
16
Q
What does the inner membrane of a mitochondria form?
A
- finger-like structure
17
Q
A
