Curiosity and asking questions are keys to creativity and growth. The document discusses cell division and mitosis. Mitosis ensures that new cells produced are genetically identical to their parent cells and allows organisms to grow and repair damaged cells. It also allows for asexual reproduction to ensure species survival. Mitosis duplicates the chromosomes and distributes them equally between new daughter cells so that each cell has the full chromosome complement.

1. CURIOSITY is the KEY to CREATIVITY Needs are never the key to creativity

2. Creativity is not artistic, but PROBLEM SOLVER E.g.: Apple Inc CEO, Steve Job

3. When you stop to ask questions, you stop growing

4. Study is not about exam, but the excitement when you learn something new  Rebecca Choong, 2010

5. Task (1): Each one of you, please think of FIVE (5) questions you would like to know about cell division. You’re free to be WILD in your question

6. Task (2): Each group please compose all question and make it into a group list

7. Task (3) Presentation

8. Task (4) Which question that you think is very creative?

10. Cells in living things do not last forever, for they… Wear out after some time Get damaged (through cuts, by ultraviolet radiation or by hazardous environmental pollutants) Grow old naturally and die

11. Importance of new cells produced are genetically identical to their parent cells: Continue with the specific cell functions of their parent cells within a particular tissue Avoid disrupting the stable internal environment of life or its processes Produce offspring that have the complete functions of an adult organism (in asexual reproduction) to ensure the survival of that species

12. Significance of mitosis Nucleus contains chromosomes. Each chromosome consists of a long DNA molecule which carries genes in a linear sequence Gene determines the individual characteristics of an organism

13. Significance of mitosis The characteristic number of chromosomes is referred to as the chromosomal number of the species Exp: Onion cell – 16 chromosomes Exp: Fruit fly - 8 chromosomes

14. Significance of mitosis Somatic cells have two sets of chromosomes, one set inherited from each parent. Each cell contains a diploid number of chromosomes (2n) In humans, each set consist of 23 chromosomes. Typical human somatic cell, 46 chromosomes arranged in 23 pairs or 2n = 46

15. Significance of mitosis The two chromosomes in each pair have the same structural features and are referred to as homologous chromosomes

16. Significance of mitosis Gametes contain only one set of unpaired chromosomes, or haploid number of chromosomes (n)

17. Cell Cycle

18. Uncontrolled Mitosis in Living Things Cancer Cancerous cell - tumour

19. Application of mitosis Cloning

20. Application of mitosis Tissue culture