Chapter 9: Cell division and mitosis: Natures Pharmacy – Flashcards
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Which of the following processes require Normal cell division?
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-Embryonic development -Would healing -Replacement of blood cells -Intestinal tract and skin cell replacement
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In the development of chemotherapeutic agents for cancer, what factors must be considered?
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-Environmental costs if the agent is from a living specimen -Production costs if the agent is rare or hard to isolate -side effects the drug may have on noncancerous cells
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Which of the following properties should a promising new ovarian cancer drug have?
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Blocks mitosis in cancerous cells
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Which of the following will be important for the continued development of chemotherapeutic agents to better fight cancer?
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-Identification of compounds from new species of plants and animals from varied environments -development of synthetic compounds that mimic naturally occurring compounds with anticancer effects -efficient and effective delivery of chemotherapeutic agents to individuals with cancer -screening systems to look for potential compounds with anticancer properties
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In the cell cycle, DNA is replicated during________.
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S
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In which stage of the cell cycle does the cell spend the most time?
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Interphase
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What would be the result if a cell completed interphase and mitosis but failed to complete cytokinesis?
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-You would only have one cell -You would have twice as many chromosomes as the parent cell
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A patient has metastatic melanoma (skin cancer). Is surgery a viable option for this patient?
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No, bc the cancerous cells have spread throughout the body
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Why would the cell make apoptosis the default mechanism when a problem in the cell cycle is detected?
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Apoptosis ensures that the cell dies instead of leading to cancer
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A normal cell that sustains irreparable DNA damage will most likely________.
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Die by apoptosis
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Cell cycle checkpoints are present to ____________.
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-Prevent mistakes in the course of cell division that lead to cancer -Ensure that each step of the cell cycle occurs accurately
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During which stage of the cell cycle do sister chromatids separate from each other?
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Anaphase
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Which is the best definition of cancer?
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A disease in which unregulated cell division occurs
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Which of the following series has the stages of the cell cycle in the proper order?
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G1, S, G2, mitosis, cytokinesis
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Which types of cells are triggered to go through apoptosis by radiation and chemotherapy treatments?
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Any cell that is rapidly undergoing cell division
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Following mitosis and cytokinesis, daughter cells are __________.
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-genetically identical to each other -genetically identical to the parent cell
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When your skin cells are exposed to UV light, like a tanning bed, DNA damage can occur. If one of these severely UV-irradiated skin cells is given a signal to divide, what are plausible outcomes?
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The cell will go through apoptosis, after the damage is detected
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Which of the following series has the stages of mitosis in the proper order?
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Prophase, metaphase, anaphase, telophase
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During which stage of the cell cycle are sister chromatids initially produced?
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Interphase
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Which checkpoint prevents a normal cell from completing its cell cycle if it has not accurately replicated its DNA?
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Interphase (G2-M)
