Download presentation
Presentation is loading. Please wait.
1
Why is cell division important?
(what processes involve cell division?)
2
Why is cell division important?
reproduction maintenance repair immune response growth development cancer
3
What are chromosomes made of?
In order for the new cells to have all the same characteristics as the parent cell, what must be passed along to each of them? hereditary material - chromosomes What are chromosomes made of? genes (DNA), and protein
5
Chromosome
7
Cell Division - 2 major stages
1. mitosis – genetic material “divided” 2. cytokinesis - cytoplasm divides (these stages overlap each other)
8
Chromatin
10
Interphase time period between cell divisions chromatin replicated (replication of chromatin = replication of DNA = replication of chromosomes)
11
funny song and video corny
13
Double Stranded Chromosome
14
Chromatids Centromere
15
Spindle fibers
16
Mitosis Metaphase
19
Mitosis in an animal cell
6 - interphase 4 - anaphase 2 - prophase 3 - metaphase 5 - telophase 1 - interphase
20
Mitosis in a plant cell 6 - interphase 2 - prophase 4 - anaphase
5 - telophase 3 - metaphase 1- interphase
21
6 9 3 1 8 2 5 4 7
22
Eukaryotic Cell Division 2 major stages
1. mitosis - nucleus of cell divides forming nuclei 2. cytokinesis - cytoplasm divides (these stages overlap each other)
25
Interphase time period between cell divisions chromatin replicated (replication of chromatin = replication of DNA = replication of chromosomes)
27
Prophase 1st stage of mitosis nuclear membrane disintegrates spindle forms chromosomes become visible (they form from coiling of chromatin)
29
Metaphase chromosomes line up in middle of cell chromosomes become attached to the spindle apparatus of centromeres
31
Anaphase centromeres replicate and separate spindle fibers shorten, spindle fibers pull the chromatids apart and collect them near the poles
33
Telophase new nuclear membrane forms chromosomes become long and thin cytoplasm begins to divide
34
Cytokinesis division of the cytoplasm of a cell after division of nucleus
36
When a cell is deprived of ATP, mitosis stops.
What does this tell you about mitosis?
37
spindle fiber formation, chromosome movements, require ATP
DNA replication, spindle fiber formation, chromosome movements, require ATP
38
The Cell Cycle
39
Can you name the stage of each photo of mitosis?
46
How is cell division different in plant and animal cells?
Plant cells - no centrioles - cell membrane does not pinch in as in animal cells - form new cell wall (cell plate) between new cells
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.