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Transcript
SNC2D1: Biology The Cell Cycle Instructions: Correctly identify the following stages of the cell cycle in the space provided. 1. 4. 7. Master Yoda 2. 3. 5. 6. 8. 9. Much Learning You Have Yes! SNC2D1: Biology Stages of a Cell Cycle Matching: Instructions: Match the statements in column A, with the correct phases of cell cycle in column B. If you require help “Young One”, refer to Master Yoda’s notes! Much Learning You Have Yes!!! A B 1. Nucleolus appears within each new nucleus. a) prophase 2. Centromeres divide. b) metaphase 3. Chromosomes become visible. c) anaphase Master Yoda Much Learning You Have Yes! 4. Spindle fibres begin to form. d) telophase 5. DNA replicates. e) interphase 6. Replicated strands move towards opposite poles. f) cytokinesis 7. Chromosomes form a line across the equator of the cell. 8. Division of the cytoplasm. 9. Nuclear membrane forms around each set of chromosome. 10. Cell grows. Completing the Chart 11. Place a check mark ( ) under each phase in which you can see structures listed in the first column. Structures Interphas Present e Prophase Metaphase Anaphase Telophase Nucleus Nucleolus Nuclear Membrane Master Yoda Much Learning You Have Yes! Chromatin Chromosomes Spindle Fibres SNC2D1: Biology Cell Growth and Division Fill in the Blanks Instructions. Write the name of the cell cycle that corresponds to each event describe below. 1. Centromeres divide. 2. Centrioles move to opposite ends of the cell. 3. Nuclear membrane forms around each mass of chromosomes. 4. Chromosomes strands separate toward opposite ends of the cell. 5. A copy of each chromosome is made. 6. Cell membrane pinches together and the cytoplasm of the cell divides. 7. The nuclear membrane disappears. 8. Daughter cells form. 9. Double-stranded chromosomes line up in the center of the cell. 10. It makes up most of the cell’s life. Master Yoda Much Learning You Have Yes! Short Answer 11. In mitosis, how many cells form from the original cell?. ________________________________________________________________________ b) Name them. __________________________________________________________________________ 12. Describe how the cell prepares for mitosis. _____________________________________________________________________________ _____________________________________________________________________ b) Draw and label a diagram showing this process. Title the diagram with the name of the process. SNC2D1: Biology Cell Cycle Worksheet Matching: Match the term to the description A. Prophase B. Interphase C. Telophase D. Metaphase E. Anaphase F. Cytokinesis Master Yoda Much Learning You Have Yes! 1. The sister chromatids are moving apart. 2. The nucleolus begins to fade from view. 3. A new nuclear membrane is forming around the chromosomes. 4. The cytoplasm of the cell begins to divide. 5. The chromosomes become visible. 6. The chromosomes are located at the equatorial plate of the cell. 7. The nuclear membrane begins to fade from view. 8. The division of the cell marked by the appearance of a cleavage furrow. 9. The chromosomes are moving towards the poles. 10. Chromatids line up along the equator. 11. Formation of spindle fibers. 12. Chromosomes are not visible. 13. Cytokinesis is completed. 14. The cell plate is completed. 15. Chromosomes are replicated. Labelling: Label the different parts of the diagram below Master Yoda Much Learning You Have Yes! Fill in the Blank: Terms may be used more than once A. Prophase B. Interphase C. Chromatid D. Spindle Fibres E. Metaphase F. Anaphase G. Cytokinesis H. Cell Plate I.Telophase J. Centromere K. Mitosis What phase do cells enter after mitosis is complete? Centromere divide and chromosomes migrate towards the ends of the cell. Chromatin condenses to form chromosomes. What is each chromosome called in a chromosome pair connected by a centromere? Master Yoda Much Learning You Have Yes! What are the two parts of cell division? This is the longest stage of cell cycle. What structures form in prophase along which the chromosomes move? In which phase of mitosis is the last phase where chromosomes pairs are together? Which phase of the cell cycle is characterized by a non-dividing cell? What structure is produced when protein fibers radiate from centrioles? What forms across the center of a plant cell during cytokinesis? The period of cell growth and development between mitotic division. If a cell lived for 24 hrs., this stage would represent 1 hr. of the cell’s life. Cell Cycle 1. Chromosomes move to the middle of the spindle during what phase? _______________ 2. What are sister chromatids? 3. When do the separate? ______________________________________________________ Master Yoda Much Learning You Have Yes! 4. During which phase do chromosomes first become visible? ________________________ 5. During which stage do organelles replicate and the cytoplasm divide? Complete the table by checking the correct column for each statement. Statement Interphas e Mitosis Cytokinesi s 6. Cell growth occurs 7. Nuclear division occurs 8. Chromosomes are distributed equally to daughter cells 9. Disintegration of nuclear membrane & nucleolus 10. Chromosomes are duplicated 11. DNA synthesis occurs 12. Cytoplasm divides immediately after this period 12. Mitochondria and other organelles are made. The following are not in the correct order. Please answer the questions below. 13. Master Yoda Which cell is in metaphase? ___________________________________________ Much Learning You Have Yes! 14. Cells A and F show an early and late stage of the same phase of mitosis. What phase is it? _________________________________________________________________ 15. In cell A, what is the structure labeled X? ____________________________________ 16. In cell F, what is the structure labeled Y? _____________________________________ 17. Which cell is not in a phase of mitosis? ______________________________________ 18. What two main changes are taking place in cell B? ____________________________ 19. Sequence the six diagrams in order from first to last. ___________________________ 20. What is the end product of mitosis? ________________________________________ 21. What is the main difference between cytokinesis in plants and animals? ____________ _______________________________________________________________________ _______________________________________________________________________ Master Yoda Much Learning You Have Yes! 22. Identify which stage of mitosis each lettered plant cell is in: C . B A D Master Yoda E Much Learning You Have Yes!