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Questions and Answers
Which of the following is NOT a characteristic of a tissue stem cell?
Which of the following is NOT a characteristic of a tissue stem cell?
- They can divide to produce more stem cells.
- They are found in specialized tissues.
- They can only differentiate into certain types of cells.
- They can differentiate into any kind of cell. (correct)
What is the relationship between a stem cell and a differentiated cell?
What is the relationship between a stem cell and a differentiated cell?
- A differentiated cell is a specialized cell that has lost its ability to divide, while a stem cell can still divide. (correct)
- A differentiated cell is a specialized cell that has lost its ability to divide.
- A stem cell is a specialized cell that can differentiate into multiple types of cells, while a differentiated cell is a specialized cell that can only differentiate into one type of cell.
- A stem cell is a specialized cell that can divide to produce more stem cells.
Bone marrow transplants are often successful in treating cancers that affect blood cells because:
Bone marrow transplants are often successful in treating cancers that affect blood cells because:
- Bone marrow is a source of white blood cells, which are important for fighting infections.
- Bone marrow contains stem cells that can differentiate into blood cells. (correct)
- Bone marrow is a rich source of red blood cells, which are essential for oxygen transport.
- Bone marrow is a type of tissue that can be easily transplanted.
What is the primary function of embryonic stem cells?
What is the primary function of embryonic stem cells?
What is the main difference between embryonic stem cells and tissue stem cells?
What is the main difference between embryonic stem cells and tissue stem cells?
Which of these diseases is NOT mentioned as a potential candidate for stem cell treatment in the text?
Which of these diseases is NOT mentioned as a potential candidate for stem cell treatment in the text?
According to the given text, what is the primary source of the stem cells found in umbilical cord blood?
According to the given text, what is the primary source of the stem cells found in umbilical cord blood?
What is the main advantage of using umbilical cord blood as a source of stem cells, as stated in the text?
What is the main advantage of using umbilical cord blood as a source of stem cells, as stated in the text?
Based on the information presented, what is a potential application of stem cell research, as mentioned in the text?
Based on the information presented, what is a potential application of stem cell research, as mentioned in the text?
What is the primary concern raised in the text regarding the use of human stem cells in research?
What is the primary concern raised in the text regarding the use of human stem cells in research?
Which of the following is NOT a characteristic of a stem cell?
Which of the following is NOT a characteristic of a stem cell?
What is the primary factor that determines the specialization of a stem cell?
What is the primary factor that determines the specialization of a stem cell?
What is the process called that produces specialized cells?
What is the process called that produces specialized cells?
Which of the following BEST describes the role of stem cells in the development of a multicellular organism?
Which of the following BEST describes the role of stem cells in the development of a multicellular organism?
What is the relationship between cellular differentiation and the genetic information in a cell's DNA?
What is the relationship between cellular differentiation and the genetic information in a cell's DNA?
In the development of a multicellular organism, which of the following happens first?
In the development of a multicellular organism, which of the following happens first?
Flashcards
Zygote
Zygote
A single cell formed by the fusion of sperm and egg.
Cellular Differentiation
Cellular Differentiation
The process by which a cell becomes specialized for a specific function.
Stem Cell
Stem Cell
An undifferentiated cell that can develop into various specialized cells.
Embryo
Embryo
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Genetic Information
Genetic Information
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Tissue Stem Cells
Tissue Stem Cells
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Differentiation
Differentiation
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Bone Marrow
Bone Marrow
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Embryonic Stem Cells
Embryonic Stem Cells
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Stem Cell Research
Stem Cell Research
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Umbilical Cord Blood
Umbilical Cord Blood
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Cord Blood Banking
Cord Blood Banking
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Ethical Concerns
Ethical Concerns
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Medical Advances
Medical Advances
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Study Notes
Stem Cells and Cellular Differentiation
- Cellular differentiation is the process where cells become specialized to perform specific functions.
- This specialization is directed by genetic information (DNA) passed from parent cells.
- A stem cell is a cell that differentiates into many different cell types.
- Stem cells divide through mitosis and cytokinesis.
- Daughter cells from stem cells have the same genes, but can develop into different cell types depending on which genes are activated.
- Stem cells are typically found in clumps that differentiate into tissue layers, like epithelial, muscle, and nerve tissues.
Types of Stem Cells
- Embryonic stem cells can differentiate into any type of cell.
- Tissue (adult) stem cells can only differentiate into certain types of cells. Examples include those found in bone marrow differentiating into white blood cells, red blood cells, or platelets.
Cord Blood Cell Banking
- Cord blood (from umbilical cord) contains a high concentration of tissue stem cells.
- These stem cells can help treat certain childhood cancers, such as leukemia.
- Cord blood can be banked for future use.
Tissue Stem Cell Transplantation
- Cord blood and bone marrow stem cells are relatively easy to isolate.
- They are used to treat diseases like leukemia.
- In leukemia, blood cells divide rapidly and non-functionally.
- Healthy stem cells from a donor are introduced to a patient's bone marrow, replacing the cancerous cells.
- Some animals, such as salamanders and starfish, have the ability to regenerate lost limbs or parts of their body.
- Tissue engineering is researching ways to regenerate damaged tissues and parts in humans.
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