Biology Chapter 10 Test Review
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24 terms
Terms | Definitions |
|---|---|
 What is the process by which bacteria reproduce called? | Binary fission |
| If a parent cell has 18 chromosomes, how many chromosomes does each daughter cell have at the end of division? | 18 |
| What are the two stages of cell division? | Mitosis and Cytokinesis |
| True or false: Bacteria Cells undergo Mitosis. | False |
| What is a centromere? | Location where two chromatids attach. |
| What are chromatids? | Duplicated strands of DNA. |
| What increases at a faster rate when a cell grows: surface area or volume? | volume |
| Why are cells small? | So it can exchange material in and out of the cell efficiently and so it is manageable for the DNA. |
| What happens during the S phase? | DNA replication |
| What phases make up interphase and what happens in each phase? | G1- growth S-DNA Replication G2- Prepares for division |
| What is cytokinesis? | Division of the cytoplasm. |
| How is cytokinesis different in plant cells and animal cells? | Plant Cell: Cell plate forms Animal Cells: Cleavage furrow forms |
| What is the sequence of the cell cycle? | Interphase: G1, S G2 M: Mitosis (prophase, metaphase, anaphase, telophase) and Cytokinesis |
| What is mitosis? | Division of the nucleus. |
| What is the result of mitosis? | 2 daughter cells that are genetically identical to the parent cell. |
| What occurs during metaphase? | chromosomes line up along the equator. |
| What happens during anaphase? | Sister chromatids split at the centromere and move to the opposite poles. |
| Name the stages of mitosis in order. | Prophase metaphase anaphase telophase |
| what are stem cells? | Cells that have not differentiation. They can become other types of cells. |
| What determines when a cell will move on to the next stage of the cell cycle? | Regulator proteins called cyclins. |
| What type of regulator proteins are growth factors? | External. |
| How are cancer cells different than normal cells? | They divide uncontrollably. |
| Why does division stop when a cut is healed? | When the cells come in contact with other cells they stop dividing. |
| What is the difference between asexual and sexual reproduction? | Sexual- 2 parents, offspring not genetically identical. Asexual- 1 Parent, offspring genetically identical. |
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