Cell cycle quiz Flashcards
1
Q
Why do cells divide?
A
- Replace old or damaged cells
- Growth
- Maintain high surface area to volume ratio
2
Q
Surface area
A
area of cell covered by plasma
membrane
3
Q
Volume
A
space inside of cell
4
Q
Ratio
A
comparison of two numbers in
relation to one another (SA/V)
5
Q
As a cell gets LARGER the volume
A
increases faster than the surface area
6
Q
what size is better for a cell
A
small
7
Q
If cell is too big, it affects:
A
- Cell transport - Diffusion over long distances
is slow and inefficient - Cell communication -cells can’t send/receive
messages quickly
8
Q
Cell Cycle
Three phases
A
- Interphase
- Mitosis
- Cytokinesis
9
Q
Interphase
A
cell grows, and copies DNA
for cell division - longest
10
Q
Mitosis
A
nucleus and nuclear material divide
11
Q
Cytokinesis
A
cytoplasm divides - shortest
12
Q
3 Stages of Interphase
A
G1
S
G2
13
Q
G1
A
cell is growing and
getting ready to copy
DNA
14
Q
S
A
synthesis phase, DNA is copied
15
Q
G2
A
cell is getting ready
to divide
- copy organelles,
centrioles made
