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Which of the following is a long finger-like projection composed of microfilaments on the surface of certain cells, such as absorptive cells of the small intestine?
Which of the following is a long finger-like projection composed of microfilaments on the surface of certain cells, such as absorptive cells of the small intestine?
- Cell junctions
- Cilia
- Flagella
- Microvilli (correct)
What are hair-like processes composed of microtubules on the free surface of certain cells, such as epithelial cells of some parts of the respiratory tract?
What are hair-like processes composed of microtubules on the free surface of certain cells, such as epithelial cells of some parts of the respiratory tract?
- Cell junctions
- Microvilli
- Cilia (correct)
- Flagella
Which type of cell junction connects adjacent cells together where the two cell membranes fuse with each other by their outer layers and the intercellular space between them is absent?
Which type of cell junction connects adjacent cells together where the two cell membranes fuse with each other by their outer layers and the intercellular space between them is absent?
- Tight junction (zonula occludens) (correct)
- Microvilli
- Gap junction
- Desmosome
What type of cell junction has narrowing of the intercellular space between two adjacent cells to become 2 nm (normally it is 20 nm), for example, in cardiac muscle cells?
What type of cell junction has narrowing of the intercellular space between two adjacent cells to become 2 nm (normally it is 20 nm), for example, in cardiac muscle cells?
In which specialized structure are the intercellular spaces between two adjacent cells normal (20 nm), such as in the intestinal absorptive cells?
In which specialized structure are the intercellular spaces between two adjacent cells normal (20 nm), such as in the intestinal absorptive cells?
What are the functions of Microvilli and where are they found in the body?
What are the functions of Microvilli and where are they found in the body?
Describe the structure of Cilia and their function in the body.
Describe the structure of Cilia and their function in the body.
What is the difference between Flagella and Cilia in terms of structure and location?
What is the difference between Flagella and Cilia in terms of structure and location?
Explain the three types of Cell junctions and provide an example of each.
Explain the three types of Cell junctions and provide an example of each.
What is the role of cell membrane specializations in the overall function of cells?
What is the role of cell membrane specializations in the overall function of cells?
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