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Questions and Answers
What are the three main types of stem cells?
What are the three main types of stem cells?
Adult stem cells are totipotent.
Adult stem cells are totipotent.
False
What is the process of programmed cell death called?
What is the process of programmed cell death called?
Apoptosis
What is the main characteristic of cancer cells?
What is the main characteristic of cancer cells?
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All tumors are cancerous.
All tumors are cancerous.
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What is the name of the immortal cell line that revolutionized modern medicine?
What is the name of the immortal cell line that revolutionized modern medicine?
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Growth factors are used all the time.
Growth factors are used all the time.
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What is the main difference between apoptosis and necrosis?
What is the main difference between apoptosis and necrosis?
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Match the following terms with their definitions
Match the following terms with their definitions
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What is the name for the smallest unit of life?
What is the name for the smallest unit of life?
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What is the name of the process by which cells go from being generic, to specialized?
What is the name of the process by which cells go from being generic, to specialized?
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Do blastocyst cells grow into a hollow ball of cells?
Do blastocyst cells grow into a hollow ball of cells?
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What does the term 'mapping' refer to in the context of cell development?
What does the term 'mapping' refer to in the context of cell development?
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What are the types of specialized cells that can differentiate into other cells in the body, known for their ability to differentiate into various types of cells?
What are the types of specialized cells that can differentiate into other cells in the body, known for their ability to differentiate into various types of cells?
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What is the process by which cells can be forced to become a lot of different cell types?
What is the process by which cells can be forced to become a lot of different cell types?
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Is it ethically problematic to get stem cells by potentially killing an embryo?
Is it ethically problematic to get stem cells by potentially killing an embryo?
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Is cellular reprogramming a new method for reprogramming adult cells?
Is cellular reprogramming a new method for reprogramming adult cells?
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What is the name of the process of programmed cell death?
What is the name of the process of programmed cell death?
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Is apoptosis a potentially bad thing if cells break down and don't take others with them?
Is apoptosis a potentially bad thing if cells break down and don't take others with them?
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What is the name for unplanned cell death?
What is the name for unplanned cell death?
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Does necrosis generally involve the cell breaking down and affecting surrounding cells?
Does necrosis generally involve the cell breaking down and affecting surrounding cells?
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What is a tumor?
What is a tumor?
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Are all tumors cancerous?
Are all tumors cancerous?
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What is the name of the immortal cell line that led to medicines and modern medicine?
What is the name of the immortal cell line that led to medicines and modern medicine?
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What is the term for external factors that are specifically not used all of the time, but can stimulate growth?
What is the term for external factors that are specifically not used all of the time, but can stimulate growth?
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Are growth factors important, for example, to help repair the body after an injury or during development?
Are growth factors important, for example, to help repair the body after an injury or during development?
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What is the name of the process of programmed cell death, which typically takes place in a controlled and organized manner?
What is the name of the process of programmed cell death, which typically takes place in a controlled and organized manner?
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Is apoptosis often described as 'can be bad' because it can trigger the unhealthy breakdown of cells?
Is apoptosis often described as 'can be bad' because it can trigger the unhealthy breakdown of cells?
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Can cancer be described as the risk of not regulating cell cycle or growth?
Can cancer be described as the risk of not regulating cell cycle or growth?
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Can natural killer cells help to combat cancer?
Can natural killer cells help to combat cancer?
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What is the name of an abnormal growth of cells?
What is the name of an abnormal growth of cells?
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Study Notes
Cell Cycle and Control Mechanisms
- Cell division, a key process for reproduction and growth, is not always required nor always used all the time
- External regulators or factors like growth factors are signals that trigger cell growth and division, and the presence or absence of signals can determine whether or not cell division occurs
- Sometimes, cells can speed up their production rate and divide faster at specific times. External regulators can speed up the production of certain cells, such as skin cells.
- Apoptosis: programmed cell death is important for development and repair of damaged tissue.
- Necrosis: unplanned/unprogrammed cell death, a result of environmental factors can cause harm to surrounding cells. Necrosis also often affects surrounding cells, in contrast to apoptosis which does not damage nearby cells.
- Cancer is linked to uncontrolled cell growth and division. Uncontrolled cell growth/division can be problematic and cause harm.
- Tumor: a mass of cancer cells that can lead to harm to surrounding tissue and organs
- Not all tumors are cancerous, some are benign
- Natural killer cells target cancerous or damaged/infected cells and inhibit their growth
- Some types of cancer are known to be genetically predisposed (such as Henrietta Lacks' cervical cancer)
- Research is still ongoing on ways to better manage and prevent cancer. Research continues to discover more about the causes of cancer and new ways to manage and prevent it.
- Henrietta Lacks' cells (HeLa cells) were pivotal in medical/scientific research due to their immortality
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Description
Test your knowledge on the cell cycle and its control mechanisms. This quiz covers important concepts such as apoptosis, necrosis, tumor types, and the role of natural killer cells in cancer. Delve into the mechanisms that regulate cell growth and understand how they relate to cancer development.
