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Cell Division
Cell Cycle
Question | Answer |
---|---|
Interphase, mitosis and cytokinesis all make up one | cell cycle |
Name the four stages of mitosis | Prophase, metaphase, anaphase and telophase |
A cell spends most of its time in which stage? | Interphase |
What happens during interphase? | Cell grows, protein synthesis, the cell does its job. When its ready to divide the DNA replicates (copies). |
What happens during prophase? | Chromosomes become visible, nuclear membrane disappears |
What happens during metaphase? | Chromosomes line up in the middle. Spindle fibers attach to chromosomes. |
Name the organelles that move to the outer edges of the cell to help with cell division. | Centrioles |
What is the purpose of the spindle fibers? | To attach to the chromosomes, line them up and pull them apart. |
What happens during anaphase? | Chromosomes are pulled away from each other. |
What happens during telophase? | Cell membrane begins to pinch, Nuclear membranes form around separated chromosomes. |
What happens during cytokinesis? | Cells completely separate into two new daughter cells. |
What does a human cell produce during one cell cycle of MITOSIS? | Two daughter cells that are completely like each other with 46 chromosomes each -just like parent cell. |
After mitosis, the number of chromosomes in a daughter cell is | The same as the number of chromosomes in a parent cell (diploid number) |
When does the the CELL CYCLE end? | After cytokinesis is complete |
When does MITOSIS end? | After telophase is complete |
How do multicellular organisms grow? | Cells continue to divide by mitosis making MORE cells |
In what phase do the chromosomes line up in the middle? | Metaphase |
In what phase do the chromosomes pull away from each other? | Anaphase |
In what phase do the cells completely split? | Cytokinesis |
The phase where the cell is not actively dividing is | Interphase |
In what phase is the DNA in thread-like form (chromatin)? | Interphase |
When cells division gets out of control this may result | Cancer |
As you become an adult, what happens to cell division? | They continue to divide - just at a slower rate. |
What does a cell do in Interphase to prepare for cell division (mitosis or meiosis)? | Doubles its DNA |
What is the goal of mitosis? | To grow, repair, heal and replace dead cells |