Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
Lesson OverviewLesson Overview
10....
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
THINK ABOUT IT
What role does cell...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
Chromosomes
What is the role of ch...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
Chromosomes
What is the role of ch...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
The genetic information that is pa...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
Prokaryotic Chromosomes
Prokaryoti...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
Eukaryotic Chromosomes
In eukaryot...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
Chromatin is composed of DNA and h...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
DNA coils around histone proteins ...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
The nucleosomes interact with one ...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
The Cell Cycle
What are the main e...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
The Cell Cycle
What are the main e...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
The Prokaryotic Cell Cycle
The pro...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
Binary fission is a form of asexua...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
The Eukaryotic Cell Cycle
The euka...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
G1 Phase: Cell Growth
In the G1 ph...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
S Phase: DNA Replication
In the S ...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
G2 Phase: Preparing for Cell Divis...
Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division
M Phase: Cell Division
In eukaryot...
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Cell cycle

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Cell cycle

  1. 1. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division Lesson OverviewLesson Overview 10.2 The Process10.2 The Process of Cell Divisionof Cell Division
  2. 2. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division THINK ABOUT IT What role does cell division play in your life? Does cell division stop when you are finished growing?
  3. 3. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division Chromosomes What is the role of chromosomes in cell division?
  4. 4. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division Chromosomes What is the role of chromosomes in cell division? Chromosomes make it possible to separate DNA precisely during cell division.
  5. 5. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division The genetic information that is passed on from one generation of cells to the next is carried by chromosomes. Every cell must copy its genetic information before cell division begins. Each daughter cell gets its own copy of that genetic information. Cells of every organism have a specific number of chromosomes. Chromosomes
  6. 6. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division Prokaryotic Chromosomes Prokaryotic cells lack nuclei. Instead, their DNA molecules are found in the cytoplasm. Most prokaryotes contain a single, circular DNA molecule, or chromosome, that contains most of the cell’s genetic information.
  7. 7. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division Eukaryotic Chromosomes In eukaryotic cells, chromosomes are located in the nucleus, and are made up of chromatin.
  8. 8. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division Chromatin is composed of DNA and histone proteins.
  9. 9. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division DNA coils around histone proteins to form nucleosomes.
  10. 10. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division The nucleosomes interact with one another to form coils and supercoils that make up chromosomes.
  11. 11. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division The Cell Cycle What are the main events of the cell cycle?
  12. 12. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division The Cell Cycle What are the main events of the cell cycle? During the cell cycle, a cell grows, prepares for division, and divides to form two daughter cells.
  13. 13. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division The Prokaryotic Cell Cycle The prokaryotic cell cycle is a regular pattern of growth, DNA replication, and cell division. Most prokaryotic cells begin to replicate, or copy, their DNA once they have grown to a certain size. When DNA replication is complete, the cells divide through a process known as binary fission.
  14. 14. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division Binary fission is a form of asexual reproduction during which two genetically identical cells are produced. For example, bacteria reproduce by binary fission. The Prokaryotic Cell Cycle
  15. 15. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division The Eukaryotic Cell Cycle The eukaryotic cell cycle consists of four phases: G1, S, G2, and M. Interphase is the time between cell divisions. It is a period of growth that consists of the G1, S, and G2 phases. The M phase is the period of cell division.
  16. 16. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division G1 Phase: Cell Growth In the G1 phase, cells increase in size and synthesize new proteins and organelles.
  17. 17. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division S Phase: DNA Replication In the S (or synthesis) phase, new DNA is synthesized when the chromosomes are replicated.
  18. 18. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division G2 Phase: Preparing for Cell Division In the G2 phase, many of the organelles and molecules required for cell division are produced.
  19. 19. Lesson OverviewLesson Overview The Process of Cell DivisionThe Process of Cell Division M Phase: Cell Division In eukaryotes, cell division occurs in two stages: mitosis and cytokinesis. Mitosis is the division of the cell nucleus. Cytokinesis is the division of the cytoplasm.

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