2. Cell Division Gaiser Life Science

3. Know Are the cells in a human baby the same as the cells in a human adult? Evidence Page 29 Cell Division Explain your answer. After listening to the PowerPoint lecture, come back here and list evidence to explain why your answer to the above question is or is not a good answer. You may also use other outside sources to help you respond.

4. – the regular sequence of growth and division of cells – the regular sequence of growth and division of cells cell cycle Clarifying ?s Information Page 30 1. interphase – stage 1: the cell grows to mature size, copies DNA, and prepares to divide into two cells – stage 1: the cell grows to mature size, copies DNA, and prepares to divide into two cells 3 stages A. Growth – cell doubles and produces all parts DNA – holds all info a cell needs in order to do its job – holds all info a cell needs in order to do its job C. Prepares to divide – Cell produces parts needed to divide. 2. mitosis – stage 2: Nucleus divides into two parts, each having a complete set of DNA – stage 2: Nucleus divides into two parts, each having a complete set of DNA Cell Division B. DNA replicated (copied) – Each cell must have a complete set of DNA to survive. 4 phases of mitosis (P-MAT)

5. Clarifying ?s Information Page 31 metaphase – Chromosomes line up. – Chromosomes line up. anaphase – Centromeres split. – Centromeres split. telophase – New nuclear membrane forms around each cell. – New nuclear membrane forms around each cell. Cell Division 4 phases of mitosis (P-MAT) prophase – Chromatin condences to make chromosomes – Chromatin condences to make chromosomes 3. cytokinesis – Cell pinches into two identical cells. – Cell pinches into two identical cells. How long does this take? It depends on the type of cell and the species the cell belongs to. The length of each stage depends on the type of cell. Summary:

7. Page 30 Clarifying ?s Information Cell Division – the regular sequence of growth and division of cells – the regular sequence of growth and division of cells cell cycle 1. interphase – stage 1: the cell grows to mature size, copies DNA, and prepares to divide into two cells – stage 1: the cell grows to mature size, copies DNA, and prepares to divide into two cells 3 stages A. Growth – cell doubles and produces all parts DNA – holds all info a cell needs in order to do its job – holds all info a cell needs in order to do its job C. Prepares to divide – Cell produces parts needed to divide. 2. mitosis – stage 2: Nucleus divides into two parts, each having a complete set of DNA – stage 2: Nucleus divides into two parts, each having a complete set of DNA B. DNA replicated (copied) – Each cell must have a complete set of DNA to survive. 4 phases of mitosis (P-MAT)

8. Page 31 Clarifying ?s Information Cell Division metaphase – Chromosomes line up. – Chromosomes line up. anaphase – Centromeres split. – Centromeres split. telophase – New nuclear membrane forms around each cell. – New nuclear membrane forms around each cell. prophase – compounds that contain carbon, all living things are made of organic compounds. – compounds that contain carbon, all living things are made of organic compounds. 3. cytokinesis – Cell pinches into two identical cells. – Cell pinches into two identical cells. How long does this take? It depends on the type of cell and the species the cell belongs to. The length of each stage depends on the type of cell.

9. This PowerPoint was created from Charlene Shea’s lecture notes by Tim Paterek. It is copyrighted and may not be reproduced outside the Vancouver School District. All pictures came from Google Image Search. To fall within the Fair Use Guidelines, this PowerPoint must be used within the confines of the classroom and may not be published back onto the Internet unless the pictures are removed.