Mitosis Digital Lab and Review per. 1

Part 1: Digital Lab Use the link below to complete part one. Make sure you read all of the instructions. Online Onion Root Tips Click on the link above to access the lab. Follow the prompts to complete the digital lab. Onion Root Tips: Determining time spent in different phases of the cell cycle. 1. Use the text from the 1st page to fill in the blanks below. Growth in an organism is carefully controlled by regulating the cell cycle. In plants, the roots continue to grow as they search for water and nutrients. These regions of growth are good for studying the cell cycle because at any given time, you can find cells that are undergoing mitosis. 2. How many phases is the cell cycle broken down into? 4 5 6 3. Match the term to its corresponding image. Interphase Prophase Metaphase Anaphase Telophase 4. Match the vocabulary word to its corresponding definition. Interphase The cell is engaged in metabolic activity and performing its duty as part of a tissue. The DNA duplicates during interphase to prepare for mitosis. Prophase Chromatin in the nucleus begins to condense and the nuclear membrane dissolves. Metaphase Spindle fibers align the chromosomes along the middle of the cell nucleus. Anaphase The paired chromosomes separate at the kinetochores and move to opposite sides of the cell. Telophase New membranes form around the daughter nuclei while the chromosomes disperse and are no longer visible under the light microscope. 5. Fill this table out at the completion of the image sorting activity. When writing your percents, go one out past the decimal and include the percent unit. Ex. 30.3% xxxxxxx Interphase Prophase Metaphase Anaphase Telophase total # of cells 20 10 3 2 1 36 % of cells 55.5% 27.7% 8.3% 5.5% 2.7% 100% 6. What phase do cells spend the least amount of time in? prophase interphase telophase 7. What phase do cells spend the most amount of time in? interphase anaphase telophase 8. What mitosis phase do cells spend the most amount of time in? metaphase prophase interphase Part 2: Bioman - Mitosis Mover! Click on the link below and answer the questions as you go. Mitosis Mover! A Cell Cycle Interactive Bioman: Mitosis Mover 9. Fill in the blanks using the text on the first slide. In order to make new body cells, the cell cycle must occur. During the cell cycle, one cell divides to from two cells with exactly the same DNA. The cell cycle includes the following: interphase, mitosis and cytokinesis. 10. When does interphase occur? before mitosis during mitosis after mitosis 11. Uncoiled DNA is called _? a chromosome chromatin chromatid 12. Which of the following is a true statement? DNA replicates during interphase. Chromatin is made of DNA. Genes are found on DNA. all of the above 13. Fill in the blanks using the text on the Intro to Mitosis slide. After interphase, mitosis will begin. Mitosis is an important part of cell division, which allows you to make more cells. Making more cells in needed for growth, development, and tissue repair (healing). 14. Mitosis results in daughter cells that are _. genetically different genetically the same 15. Which of the following is not a phase of mitosis? cytokinesis prophase telophase 16. Use the text on the Prophase slide to fill in the blanks below. Also, notice that each chromosome has 2 halves. Each half of a chromosome is called a sister chromatid. The sister chromatids of a chromosome are identical. 17. What happens during metaphase? Chromosomes separate from one another. Chromosomes line up single file down the middle of the cell. Chromosomes become visible. All the above. 18. What happens in anaphase? Sister chromatids separate and move towards opposite poles. Chromosomes line up single file down the middle of the cell. Nuclei re-from. The nucleus disintegrates. 19. What happens during telophase? Each newly forming cell gets a nucleus. Chromosomes uncoil to form chromatin. 2 diploid body cells are being formed. All the above. 20. After mitosis and cytokinesis are complete, which of the following are true? 4 genetically different daughter cells have been produced. 4 genetically identical daughter cells have been produced. 2 genetically different daughter cells have been produced. 2 genetically identical daughter cells have been produced. 21. Insert a screenshot of your scoresheet in the space below. Be sure to write your name on the scoresheet before you turn it in and do NOT crop the scoresheet!