Cell+Homework+KR

=Cell Division Homework=

Keaton Rye

 * **1. What are the three stages of interphase. Describe each phase.**
 * **G1 Stage** is when a cell doubles its organelles and it accumulates the materials needed for DNA synthesis..
 * 1) **S Stage** is when DNA replication occurs
 * 2) **G2 Stage** is when the cell synthesizes the proteins needed for cell division.
 * 1) **G2 Stage** is when the cell synthesizes the proteins needed for cell division.



it duplicates the DNA and gets proteins
 * 2. How does interphase prepare a cell for cell division?**


 * 3. Define: mitosis, sister chromatids, centromere, cytokinesis, apoptosis**
 * Mitosis: A type of cell division, where new DNA are made
 * Sister Chromatids: are DNA double helix molecules
 * Centromere: where the sister chromatids are connected.
 * Cytokinesis: a type of cytoplasmio

INCLUDE LABELED IMAGES OF THE PHASES OF MITOSIS The parent cell divides and that makes the daughter cells.
 * 4. Following mitosis, how does the chromosome number of the daughter cell compare with the chromosome number of the parent cell?**


 * 5. What are the phases of mitosis and what happens during each phase?**
 * **Early Prophase**: centrosomes have duplicated.
 * **Prophase**: nucleolus has disappeared, and duplicated chromosomes are visible.
 * **Early Metaphase**: The things get attached to the spindle fibers
 * **Metaphase**: centromeres of duplicated chromosomes go to the center
 * **Anaphase**: Sister chromatids part and become daughter chromosomes that move toward the spindle poles. The poles get the same amout.
 * **Telophase**: daughter cells are form

The cytoplasm is divided between the daughter cells by cytokinesis.
 * 6. How is the cytoplasm divided between the daughter cells following mitosis?**


 * 7. Define: parent cell, daughter cell, diploid, centrosome, mitotic spindle, centrioles.**
 * **Parent Cell**: Cell that divides
 * **Daughter Cell**: The new cells.
 * **Diploid**: the # of chromosomes
 * **Centrosome**: The microtubule organizing center of the cell.
 * **Mitotic Spindle**: Where they assemble the microtubules that make up spindle fibers.
 * **Cetrioles**: Short cylinders of microtubules that are present in centrosomes.

The process is important because it makes new cells. The processes is controlled by the DNA.
 * 8. What is the importance of mitosis and how is the process controlled?**