2.3 Cell Size Flashcards
1
Q
What does cellular metabolism depend on?
A
Cell size
2
Q
Why is cell size important for cell regulation?
A
- at a certain size, it begins to be too difficult for a cell to regulation the what comes in and what goes out of the plasma membrane
3
Q
Why is cell size important to regulate? (3)
A
- Cellular waste must leave
- dissipate thermal energy
- nutrients and other resources/chemical materials must enter
4
Q
What does the size of a cell dictate?
A
Function
5
Q
Why do cells need a high SA-V ratio?
A
- optimize the exchange of material through the plasma membrane
6
Q
See formulas for cuboidal cells and Spherical cells on page 20
A
Lol
7
Q
How are eukaryotic cells able to become so much larger than prokaryotic cells, while still efficiently exchanging material through the plasma membrane?
A
- they have membrane bound organelles and compartmentalization to allow for more metabolic reactions and efficiency
8
Q
Cells tend to be small. What does this mean for the cell? (2)
A
- small cells have high SA-V ratios
- optimizes exchange of materials at the plasma membrane
9
Q
Cells tend to be small. What does this mean for LARGE cells? (3)
A
- lower SA-V ratio
- therefore lose efficiency exchanging materials
- the cellular demand for resources increases so the rate of heat exchange increases
