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The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type
of monomer are known as:
of monomer are known as:
- a)Intermediate filaments
- b)Lamins
- c)Microtubules
- d)Microfilaments
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
The solid linear cytoskeletal elements having a diameter of 6 nm and m...
Explanation:
Microfilaments are solid linear cytoskeletal elements made up of a single type of monomer called actin. They have a diameter of 6-8 nm and are found in all eukaryotic cells. Microfilaments play a crucial role in cell structure, cell motility, and cell division. They are involved in the formation of cell protrusions like filopodia and lamellipodia, which are important for cell movement. Microfilaments also provide mechanical support to the cell and help in maintaining its shape.
Comparison with other options:
Intermediate filaments are another type of cytoskeletal element, but they have a diameter of 10 nm and are made up of a diverse group of proteins like keratin, vimentin, and neurofilament. They are found in cells that are subjected to mechanical stress and provide mechanical strength to the cell.
Lamins are fibrous proteins that form a meshwork beneath the nuclear envelope and are important for maintaining nuclear structure and function.
Microtubules are hollow cylindrical structures made up of tubulin protein and have a diameter of 25 nm. They are involved in cell division, cell motility, and intracellular transport.
Conclusion:
Therefore, the correct option is D, microfilaments, as they are solid linear cytoskeletal elements with a diameter of 6 nm and are made up of a single type of monomer called actin.
Microfilaments are solid linear cytoskeletal elements made up of a single type of monomer called actin. They have a diameter of 6-8 nm and are found in all eukaryotic cells. Microfilaments play a crucial role in cell structure, cell motility, and cell division. They are involved in the formation of cell protrusions like filopodia and lamellipodia, which are important for cell movement. Microfilaments also provide mechanical support to the cell and help in maintaining its shape.
Comparison with other options:
Intermediate filaments are another type of cytoskeletal element, but they have a diameter of 10 nm and are made up of a diverse group of proteins like keratin, vimentin, and neurofilament. They are found in cells that are subjected to mechanical stress and provide mechanical strength to the cell.
Lamins are fibrous proteins that form a meshwork beneath the nuclear envelope and are important for maintaining nuclear structure and function.
Microtubules are hollow cylindrical structures made up of tubulin protein and have a diameter of 25 nm. They are involved in cell division, cell motility, and intracellular transport.
Conclusion:
Therefore, the correct option is D, microfilaments, as they are solid linear cytoskeletal elements with a diameter of 6 nm and are made up of a single type of monomer called actin.
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Community Answer
The solid linear cytoskeletal elements having a diameter of 6 nm and m...
The cytoskeleton is unique to eukaryotic cells. It is a dynamic three-dimensional structure that fills the cytoplasm. This structure acts as both muscle and skeleton, for movement and stability. The long fibers of the cytoskeleton are polymers of subunits. The primary types of fibers comprising the cytoskeleton are microfilaments, microtubules, and intermediate filaments.
Microfilaments are fine, thread-like protein fibers, 3-6 nm in diameter. They are composed predominantly of a contractile protein called actin.
Microtubules are cylindrical tubes, 20-25 nm in diameter. They are composed of subunits of the protein tubulin--these subunits are termed alpha and beta.
Intermediate filaments are about 10 nm diameter and provide tensile strength for the cell.
Lamin is the protein present in intermediary filaments.
Microfilaments are fine, thread-like protein fibers, 3-6 nm in diameter. They are composed predominantly of a contractile protein called actin.
Microtubules are cylindrical tubes, 20-25 nm in diameter. They are composed of subunits of the protein tubulin--these subunits are termed alpha and beta.
Intermediate filaments are about 10 nm diameter and provide tensile strength for the cell.
Lamin is the protein present in intermediary filaments.
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The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single typeof monomer are known as:a)Intermediate filamentsb)Laminsc)Microtubulesd)MicrofilamentsCorrect answer is option 'D'. Can you explain this answer?
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