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| 1 | |
What are the two main phases of the cell cycle? |
| | A) | cell division and interphase |
| | B) | mitosis and cytokinesis |
| | C) | DNA replication, cell growth, and preparation |
| | D) | cell division, DNA replication |
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| 2 | |
What are tumour cells? |
| | A) | Tumour cells are damaged cells. They leave the cell cycle when it is time for them to die. |
| | B) | Tumour cells start out functioning normally, but transform during the cell cycle and begin to divide uncontrollably. |
| | C) | Tumour cells begin with abnormal characteristics during the first stages of the cell cycle and form a clump or group of cells within a specific part of the body. |
| | D) | Tumour cells divide uncontrollably and quickly spread to other areas of the body. |
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| 3 | |
In the cell cycle, what are the stages that take place during interphase? |
| | A) | one period of growth and one period of DNA replication |
| | B) | two different periods of growth |
| | C) | two periods of growth and one period of DNA replication |
| | D) | two periods of growth and two periods of DNA replication |
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| 4 | |
What is the purpose of the cell cycle checkpoints? |
| | A) | During these checkpoint periods within the cycle, proteins help to determine whether cell division is required. |
| | B) | During the first checkpoint period, it is determined which cells are healthy enough to exit the cell cycle. Then, before the cells reach the second checkpoint, all of these healthy cells enter a non-dividing stage. |
| | C) | The first checkpoint helps determine which cells are cancerous. Then, before they reach the second checkpoint, these cells are completely destroyed to prevent them from spreading to other areas of the body. |
| | D) | The first checkpoint helps determine which cells contain abnormal genetic material. Then, before they reach the second checkpoint, these cells are entered into a non-dividing stage. |
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| 5 | |
What is the difference between cancer cells and the group of cells found in a tumour? |
| | A) | Cancer cells start off as normal cells before breaking down and becoming abnormal. The cells in a tumour already have abnormal genetic material when they begin the cell cycle. |
| | B) | Cancer cells carry abnormal genetic material that divides uncontrollably at a rapid rate. The cells of a tumour enter a stage of non-division once they have formed in a certain area of the body. |
| | C) | A tumour consists of a group of rapidly dividing cells that attack many areas of the body. Cancer cells form in specific areas of the body and only attack that region. |
| | D) | Tumour cells are a group of cells clumped together in one specific area. Cancer cells are abnormal cells that are further mutated. They can spread into surrounding areas of the body. |
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| 6 | |
Which statement best describes cell suicide? |
| | A) | During cell suicide, the damaged contents of the cell are leaked out of the cell and can cause irritation in the surrounding areas. |
| | B) | During the process of cell suicide, a cell breaks down and its contents are packaged and distributed so that other cells can use them. |
| | C) | Cell suicide is beneficial to the organism because “suicide genes” coded within every cell help to destroy cells that become mutated and abnormal. |
| | D) | Following each stage of growth in the cell cycle is a stage during which cell suicide occurs and every abnormal cell is broken down to prevent further threat to the organism. |
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