1 / 12

Cellular growth and Reproduction

Cellular growth and Reproduction. How large are cells?. Most cells are less than 100 μ m in diameter Why do you think this is important?. The Cell Cycle. Cell Cycle- cells reproduce by a cycle of growing and dividing Cell cycle consist of three main stages Interphase Mitosis Cytokinesis.

fayre
Télécharger la présentation

Cellular growth and Reproduction

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cellular growth and Reproduction

  2. How large are cells? • Most cells are less than 100μm in diameter • Why do you think this is important?

  3. The Cell Cycle • Cell Cycle- cells reproduce by a cycle of growing and dividing • Cell cycle consist of three main stages • Interphase • Mitosis • Cytokinesis

  4. Steps to cell cycle • Interphase- the stage during which the cell grows, carries out cellular functions, and replicates, or makes copies of DNA

  5. Chromosomes • Chromosomes- DNA of is divided into segments and binds with proteins • Chromatin- uncoiled chromosomes that are fully extended into threadlike strands

  6. Steps to Cell cycle • Mitosis- is the stage of the cell cycle during which the cell’s nucleus and nuclear materials divide • Cytokinesis- method by which a cell’s cytoplasm divides, creating a new cell

  7. Steps to cell cycle • Prophase- First step to mitosis which cell spends most of its time in, where chromatin condenses into chromosomes

  8. Prophase • Sister chromatids- are structures that contain the identical copies of DNA • Centromere- Structure at center of chromosome where the sister chromatids are attached

  9. Steps of Cell Cycle • Metaphase- spindle apparatus pulls sister chromatids into the center of the cell on metaphase plate • Spindle apparatus- spindle fibers, centrioles and aster fibers

  10. Steps of Cell Cycle • Anaphase-Chromatids are pulled apart breaking at the centromere and begin moving to opposite poles

  11. Steps of Cell Cycle • Telophase- is last stage of mitosis where chromosomes arrive at poles and begin to decondense (untrist)

  12. Mitosis

More Related