1 / 7

1.6 Cell Division

1.6 Cell Division. Cell Cycle Interphase Mitosis Cyclins Tumours. Cell Cycle. 3 Stages of Cell's Life Cycle Interphase Mitosis (division of nucleus) Cytokinesis (division of cytoplasm). Interphase. Three phases of Interphase G 1 : cell grows, DNA transcribed, protein synthesised

kareem-bryan
Download Presentation

1.6 Cell Division

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. 1.6 Cell Division Cell Cycle Interphase Mitosis Cyclins Tumours

  2. Cell Cycle 3 Stages of Cell's Life Cycle • Interphase • Mitosis (division of nucleus) • Cytokinesis (division of cytoplasm)

  3. Interphase Three phases of Interphase • G1: cell grows, DNA transcribed, protein synthesised • S : DNA is replicated • G2 : Cell prepares for division

  4. Mitosis

  5. Cyclins • Cyclins are compounds that are involved in the control of the cell cycle. • Cyclins interact with proteins called CDK's (cyclin-dependent kinases) to form enzymes. • These enzymes control events such as microtuble formation and chromatid alignment.

  6. Primary & Secondary Tumours • Apoptosis: programmed cell death • Tumour: unchecked growth • Benign tumour: stays • Malignant tumour: moves: cancer • Primary tumour ->metastasis -> secondary tumour

  7. Causes of Tumours • Mutagens: Physical, chemical, & biological agents that change DNA. (radiation, tobacco smoke) • Mutation: DNA changes • Carcinogens: cancer causing DNA changes • Oncogenes: special genes with potential to cause cancer. May be altered normal genes or abnormally expressed

More Related