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10-2 Cell Division
Question | Answer |
---|---|
What are the main events of the cell cycle? | During the cell cycle, a cell grows, prepares for division, and divides to form two daughter cells, each of which then begins the cycle again. |
What are the four phases of mitosis? | prophase, metaphase, anaphase, and telophase |
What are chromosomes made of? | DNA and proteins |
In eukaryotes, cell division is more complex and occurs in two main stages. What are these two main stages? | mitosis and cytokinesis |
What happens during the G1 phase? | Cells increase in size and synthesize new proteins and organelles. |
What is the function of the spindle? | It helps separate the chromosomes. |
What is cytokinesis? | The second stage of cell division in eukaryotes, and is the division of cytoplasm. |
What is mitosis? | The first stage of cell division in eukaryotes, and is the division of the nucleus. |
What happens during interphase? | The cell grows and replicates its DNA and centrioles. |
What happens during Prophase? | The chromatin condenses into chromosomes. The centrioles separate, and a spindle begins to form. The nuclear envelope breaks down. |
What phase of mitosis is Anaphase? | Third |
What are two tiny structures located in the cytoplasm near the nuclear envelope? | Centrioles |
What happens in the Metaphase phase? | The chromosomes line up across the center of the cell. Each chromosome is connected to a spindle fiber at its centromere. |
Where are Centromeres usually located? | Near the middle of the chromatids, although some lie near the ends |
What does cytokinesis mean? | It means "movement within the cell". |