Understanding Cell Reproduction and Mitosis in Living Organisms

Living organisms go through a life cycle that involves cell reproduction. This process includes mitosis, where the nucleus divides to form two identical nuclei. The stages of mitosis - interphase, prophase, metaphase, anaphase, telophase, and cytokinesis - are essential for growth, repair, and replacement of cells. Through a series of steps, cells replicate and divide, ensuring the continuity of life.

• Cell Reproduction
• Mitosis
• Life Cycle
• Organisms
• Growth

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1. How do little elephants grow up to be BIG elephants?

2. Why do animals shed their skin?

3. The answer is.. Cell Reproduction!! All living organisms have a life cycle! A life cycle begins with the organism s formation, is followed by growth and development and finally ends in death. Two types of reproduction: asexual and sexual

4. Three reasons why cells reproduce asexually 1.) Growth 2.) Repair 3.) Replacement

5. Mitosis The process in which the nucleus divides to form two identical nuclei Interphase Prophase Metaphase Anaphase Telophase Cytokinesis

6. Interphase Happens before mitosis begins Chromosomes are copied (# doubles)

7. Prophase 1st step in Mitosis Mitosis begins (cell begins to divide) Centrioles appear and begin to move to the opposite end of the cell Spindle fibers form between the poles.

8. Metaphase 2nd step in Mitosis Chromatids (or pairs of chromosomes) line up in the middle and attach to spindle fibers

9. Anaphase 3rd step in Mitosis Chromatids (or pairs of chromosomes) separate and begin to move to opposite ends of the cell.

10. Telophase 4th step in Mitosis Two new nuclei form. Chromosomes appear as chromatin (spaghetti rather than rods) Mitosis ends

11. Cytokinesis Occurs after mitosis Cell membrane moves inward to create two daughter cells- each with its own nucleus and identical chromosomes.

12. REMEMBER!!!! Interphase Prophase Metaphase Anaphase Telophase Cytokinesis I PRAY MORE AT THE CHURCH