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Which among the following is incorrect about cytoskeleton, cilia and flagella?
- a)Cytoskeleton is the network of minute proteinaceous structure in the cytoplasm and which mainly contains microfilaments and micro tubules
- b)Microtubules are composed of protein actin and microtubules are composed of protein tubulin
- c)Cilia is present in large numbers of the body and only one or two flagella are present in an organism
- d)Both flagella and cilia help in movement of the organism
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which among the following is incorrect about cytoskeleton, cilia and f...
- Cytoskeleton is the network of minute proteinaceous structure in the cytoplasm and which mainly contains microfilaments and micro tubules.
- Microtubules are composed of protein tubulin and microtubules are composed of protein actin.
Community Answer
Which among the following is incorrect about cytoskeleton, cilia and f...
The incorrect statement about cytoskeleton, cilia, and flagella is option 'B': Microtubules are composed of protein actin and microfilaments are composed of protein tubulin.
Explanation:
The cytoskeleton, cilia, and flagella are important structures found in cells that play crucial roles in maintaining cell shape, providing structural support, and facilitating movement.
1. Cytoskeleton:
- The cytoskeleton is a network of minute proteinaceous structures present in the cytoplasm of cells.
- It provides structural support and helps in maintaining the shape of the cell.
- The cytoskeleton is made up of three main components: microfilaments, intermediate filaments, and microtubules.
- Microfilaments are composed of a protein called actin.
- Intermediate filaments are made up of various proteins, such as keratins.
- Microtubules are composed of a protein called tubulin.
2. Cilia and Flagella:
- Cilia and flagella are specialized structures found on the surface of cells that are involved in cellular movement.
- Cilia are present in large numbers on the cell surface, while usually only one or two flagella are present in an organism.
- Both cilia and flagella are structurally similar and consist of a 9+2 arrangement of microtubules.
- This arrangement includes nine pairs of microtubules surrounding two central microtubules.
- The movement of cilia and flagella is achieved through the bending and coordination of these microtubules.
- Cilia and flagella help in the movement of the organism by either propelling the organism through a fluid medium or by creating a fluid current to move substances across the cell surface.
Incorrect Statement:
- Option 'B' states that microtubules are composed of protein actin, which is incorrect.
- Microtubules are actually composed of a protein called tubulin, not actin.
- Actin, on the other hand, is the protein that makes up microfilaments, not microtubules.
In summary, the incorrect statement is option 'B' because microtubules are composed of protein tubulin, not actin.
Explanation:
The cytoskeleton, cilia, and flagella are important structures found in cells that play crucial roles in maintaining cell shape, providing structural support, and facilitating movement.
1. Cytoskeleton:
- The cytoskeleton is a network of minute proteinaceous structures present in the cytoplasm of cells.
- It provides structural support and helps in maintaining the shape of the cell.
- The cytoskeleton is made up of three main components: microfilaments, intermediate filaments, and microtubules.
- Microfilaments are composed of a protein called actin.
- Intermediate filaments are made up of various proteins, such as keratins.
- Microtubules are composed of a protein called tubulin.
2. Cilia and Flagella:
- Cilia and flagella are specialized structures found on the surface of cells that are involved in cellular movement.
- Cilia are present in large numbers on the cell surface, while usually only one or two flagella are present in an organism.
- Both cilia and flagella are structurally similar and consist of a 9+2 arrangement of microtubules.
- This arrangement includes nine pairs of microtubules surrounding two central microtubules.
- The movement of cilia and flagella is achieved through the bending and coordination of these microtubules.
- Cilia and flagella help in the movement of the organism by either propelling the organism through a fluid medium or by creating a fluid current to move substances across the cell surface.
Incorrect Statement:
- Option 'B' states that microtubules are composed of protein actin, which is incorrect.
- Microtubules are actually composed of a protein called tubulin, not actin.
- Actin, on the other hand, is the protein that makes up microfilaments, not microtubules.
In summary, the incorrect statement is option 'B' because microtubules are composed of protein tubulin, not actin.
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Which among the following is incorrect about cytoskeleton, cilia and flagella?a)Cytoskeleton is the network of minute proteinaceous structure in the cytoplasm and which mainly contains microfilaments and micro tubulesb)Microtubules are composed of protein actin and microtubules are composed of protein tubulinc)Cilia is present in large numbers of the body and only one or two flagella are present in an organismd)Both flagella and cilia help in movement of the organismCorrect answer is option 'B'. Can you explain this answer?
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Which among the following is incorrect about cytoskeleton, cilia and flagella?a)Cytoskeleton is the network of minute proteinaceous structure in the cytoplasm and which mainly contains microfilaments and micro tubulesb)Microtubules are composed of protein actin and microtubules are composed of protein tubulinc)Cilia is present in large numbers of the body and only one or two flagella are present in an organismd)Both flagella and cilia help in movement of the organismCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which among the following is incorrect about cytoskeleton, cilia and flagella?a)Cytoskeleton is the network of minute proteinaceous structure in the cytoplasm and which mainly contains microfilaments and micro tubulesb)Microtubules are composed of protein actin and microtubules are composed of protein tubulinc)Cilia is present in large numbers of the body and only one or two flagella are present in an organismd)Both flagella and cilia help in movement of the organismCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which among the following is incorrect about cytoskeleton, cilia and flagella?a)Cytoskeleton is the network of minute proteinaceous structure in the cytoplasm and which mainly contains microfilaments and micro tubulesb)Microtubules are composed of protein actin and microtubules are composed of protein tubulinc)Cilia is present in large numbers of the body and only one or two flagella are present in an organismd)Both flagella and cilia help in movement of the organismCorrect answer is option 'B'. Can you explain this answer?.
Which among the following is incorrect about cytoskeleton, cilia and flagella?a)Cytoskeleton is the network of minute proteinaceous structure in the cytoplasm and which mainly contains microfilaments and micro tubulesb)Microtubules are composed of protein actin and microtubules are composed of protein tubulinc)Cilia is present in large numbers of the body and only one or two flagella are present in an organismd)Both flagella and cilia help in movement of the organismCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which among the following is incorrect about cytoskeleton, cilia and flagella?a)Cytoskeleton is the network of minute proteinaceous structure in the cytoplasm and which mainly contains microfilaments and micro tubulesb)Microtubules are composed of protein actin and microtubules are composed of protein tubulinc)Cilia is present in large numbers of the body and only one or two flagella are present in an organismd)Both flagella and cilia help in movement of the organismCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which among the following is incorrect about cytoskeleton, cilia and flagella?a)Cytoskeleton is the network of minute proteinaceous structure in the cytoplasm and which mainly contains microfilaments and micro tubulesb)Microtubules are composed of protein actin and microtubules are composed of protein tubulinc)Cilia is present in large numbers of the body and only one or two flagella are present in an organismd)Both flagella and cilia help in movement of the organismCorrect answer is option 'B'. Can you explain this answer?.
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ample number of questions to practice Which among the following is incorrect about cytoskeleton, cilia and flagella?a)Cytoskeleton is the network of minute proteinaceous structure in the cytoplasm and which mainly contains microfilaments and micro tubulesb)Microtubules are composed of protein actin and microtubules are composed of protein tubulinc)Cilia is present in large numbers of the body and only one or two flagella are present in an organismd)Both flagella and cilia help in movement of the organismCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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