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Cell Cycle- 2 (1)
Interphase, Mitosis, and Cytokinesis
| Question | Answer |
|---|---|
| The cell cycle includes ______ ________ and division of ________ _______ | Cell growth; somatic cells |
| What three MAIN processes happen during the cell cycle? | Interphase, mitosis, and cytokinesis |
| Chromosomes contain _____ and appear only during cell ______. | DNA; division |
| What is found in chromatin inside of the nucleus? | Chromosomes |
| What is the longest phase of the CELL CYCLE? | Interphase |
| What stages is interphase broken into? | G1, S, and G2 |
| Describe the G1 stage during interphase. | Proteins are produced to help a cell grow. |
| Describe the S stage during interphase. | Chromosome replication, sister chromatids are held together by centromere. |
| Describe the G2 stage during interphase. | Preparation for mitosis. |
| Describe mitosis. When does it occur? | The division of the nucleus of the cell; It occurs after G2 phase of interphase and before citokinesis. |
| What are the four stages of mitosis? | Prophase, metaphase, anaphase, and telophase. |
| What is the longest phase of MITOSIS? | Prophase |
| What happens during prophase? | The nuclear membrane and nucleolus fade, and chromosomes are visible. Microtubules (spindle fibers) are also visible. |
| What happens during metaphase? | Chromosomes line up at the center. The mictrotubules (spindle fibers) attach to centormeres. Chromosomes form a metaphase plate in the center. |
| What happens during anaphase? | Sister chromatids and centromeres are split and pulled apart by the microtubules. All parts are moved from the center and move towards the pole of the cell. |
| What happens during telophase? | Two new nuclei and cells begin to form. The cells don't finish their complete cell division, yet. |
| Describe cytokinesis. | Division of the cytoplasm. |
| When does cytokinesis occur? | After telophase. |
| What occurs when two animal cells are formed? | A cleavage furrow. |
| What occurs when two plant cells are formed? | A cell plate. |