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Structure of centrosome
Centrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.
Q. Out of the two centrioles in the sperm, the distal centriole forms:
- a)the head
- b)the axial filament
- c)the neck
- d)none of the above
Correct answer is option 'B'. Can you explain this answer?
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Structure of centrosomeCentrosome is a small naked organelle found in...
Neck of sperm contain distal centriole which step by step form axial filament.
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Structure of centrosomeCentrosome is a small naked organelle found in...
Centrosome Structure and Function
Centrosome is a small organelle found in the cytoplasm of animal cells. It plays a crucial role in cell division, as it is responsible for organizing microtubules, which help pull chromosomes apart during mitosis.
Centrosome consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Let's understand the structure of centrosome in detail:
Centrioles Structure
- Centrioles are short cylinders, about 0.2 micrometers in diameter and 0.5 micrometers long.
- Each centriole consists of nine triplets of microtubules arranged in a circular pattern.
- Each microtubule triplet is composed of three microtubules, with an A, B, and C tubule.
- The A and B tubules are connected by a projection called the nexin link, while the C tubule is not connected to the others.
- The centrioles are surrounded by a matrix of pericentriolar material (PCM) that contains various proteins that are important for microtubule nucleation and organization.
Functions of Centrosome
- Centrosome plays a critical role in organizing microtubules during cell division.
- During interphase, the centrosome duplicates itself, and each daughter centrosome moves to opposite ends of the cell.
- During mitosis, the microtubules emanating from the centrosome attach to the chromosomes at the kinetochores and help separate them into two daughter cells.
- Centrosome also plays a role in the formation of cilia and flagella, which are hair-like structures that help cells move.
Distal Centriole in Sperm
- In sperm cells, the centrosome is located near the tail region and is called the basal body.
- The distal centriole in the sperm forms the axial filament, which is a long tail-like structure that helps the sperm move.
- The proximal centriole forms the basal body, which anchors the axial filament to the cell membrane.
Conclusion
Centrosome is an essential organelle that plays a crucial role in cell division and organization of microtubules. It consists of two bundles of microtubules called centrioles, and each centriole is composed of nine triplets of microtubules. In sperm cells, the distal centriole forms the axial filament, which helps the sperm move.
Centrosome is a small organelle found in the cytoplasm of animal cells. It plays a crucial role in cell division, as it is responsible for organizing microtubules, which help pull chromosomes apart during mitosis.
Centrosome consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Let's understand the structure of centrosome in detail:
Centrioles Structure
- Centrioles are short cylinders, about 0.2 micrometers in diameter and 0.5 micrometers long.
- Each centriole consists of nine triplets of microtubules arranged in a circular pattern.
- Each microtubule triplet is composed of three microtubules, with an A, B, and C tubule.
- The A and B tubules are connected by a projection called the nexin link, while the C tubule is not connected to the others.
- The centrioles are surrounded by a matrix of pericentriolar material (PCM) that contains various proteins that are important for microtubule nucleation and organization.
Functions of Centrosome
- Centrosome plays a critical role in organizing microtubules during cell division.
- During interphase, the centrosome duplicates itself, and each daughter centrosome moves to opposite ends of the cell.
- During mitosis, the microtubules emanating from the centrosome attach to the chromosomes at the kinetochores and help separate them into two daughter cells.
- Centrosome also plays a role in the formation of cilia and flagella, which are hair-like structures that help cells move.
Distal Centriole in Sperm
- In sperm cells, the centrosome is located near the tail region and is called the basal body.
- The distal centriole in the sperm forms the axial filament, which is a long tail-like structure that helps the sperm move.
- The proximal centriole forms the basal body, which anchors the axial filament to the cell membrane.
Conclusion
Centrosome is an essential organelle that plays a crucial role in cell division and organization of microtubules. It consists of two bundles of microtubules called centrioles, and each centriole is composed of nine triplets of microtubules. In sperm cells, the distal centriole forms the axial filament, which helps the sperm move.
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Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect answer is option 'B'. Can you explain this answer?
Question Description
Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect 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 Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect 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 Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect answer is option 'B'. Can you explain this answer?.
Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect 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 Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect 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 Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Here you can find the meaning of Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Structure of centrosomeCentrosome is a small naked organelle found in the cytoplasm of animal cell near the outer surface of the nucleus. It consists of two bundles of microtubules called centrioles that lie at right-angles to each other. Centrioles are short cylinders and possess a whorl of 9 peripheral fibrils. The fibrils are absent in the centre. Each fibrils are made of 3 sub-fibres. There is a proteinaceous hub in the central part of a centriole.Q. Out of the two centrioles in the sperm, the distal centriole forms:a)the headb)the axial filamentc)the neckd)none of the aboveCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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