Cell Division: Mitosis Basic Animal Genetics, ANR.C.C7.5.
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Transcript of Cell Division: Mitosis Basic Animal Genetics, ANR.C.C7.5.
Cell Division: Mitosis
Basic Animal Genetics, ANR.C.C7.5
Objective:
Understand the purpose of mitosis
Understand the process of mitosis
Explain the sequence and events of each phase
Review:
What are the two types of cells?
Eukaryotic Prokaryotic
What are prokaryotic cells?
Simple cells Few internal
structures No membrane
bound organelles One-celled
organisms, Bacteria
Examples of prokaryotic cell:
Bacteria
Cells
What are eukaryotic cells?
Cells that contain organelles surrounded by membranes Most living organisms
Examples of eukaryotic cells:
Plant
Cells
Animal
Cells
Human
Cells
Human
Cells
Plant Cell
(Tomato)
Animal Cell
(tiger)
How do prokaryotic cells divide?
Binary Fission
(A fancy name that scientists use to impress their girlfriends or boyfriends. A process where one prokaryotic cell becomes two.)
How do eukaryotic cells divide?
Mitosis!
What is mitosis?
(How eukaryotic cells divide.) A continuous process of four phases that
results in the division of the nucleus.
Making more cells!
Why do we care?
Once upon a time we were all one little cell.
Because of mitosis we are now made of trillions of cells.
This applies to animals too!
Made possible, in part by: MITOSIS
Made possible, in part by: MITOSIS
Made possible, in part by: MITOSIS
You get the idea…
The Phases of
Mitosis
The 4 Phases of Mitosis:
Prophase Metaphase Anaphase Telophase
What about Interphase?
Interphase is the resting period between cell division.
Why do we study diagrams first?
Easy to identify structures Clear Simple
Why do should we view microscopic images also?
To see the real deal! To reveal greater complexities.
Interphase
diagram microscopic image
Are the cells really pink and purple?
Nope, they are stained so that we can see the organelles better.
Prophase
diagram microscopic image
Metaphase
diagram microscopic image
Anaphase
diagram microscopic image
Telophase
diagram microscopic image
They all look like blobs… how can
we tell them apart?
What’s happening in each phase?