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Cell Division: Mitosis. 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
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Objective: • Understand the purpose of mitosis • Understand the process of mitosis • Explain the sequence and events of each phase
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!
The 4 Phases of Mitosis: • Prophase • Metaphase • Anaphase • Telophase
What about Interphase? • Interphase is the resting period between cell division.
Why do we study diagramsfirst? • Easy to identify structures • Clear • Simple
Why do should we view microscopicimages 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