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The axoneme of eukaryotic flagellum
- a)Is made up of nine microtubule triplets
- b)Arises from the centriole like structure called the basal bodies
- c)Possesses a single microtubule running parallel to the short axis
- d)Made up of nine peripheral and two central microtubule doublets
Correct answer is option 'B'. Can you explain this answer?
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The axoneme of eukaryotic flagelluma)Is made up of nine microtubule t...
Core or axoneme of eukaryotic flagellum is made up of 9 peripheral doublet and 2 central singlet microtubules.
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The axoneme of eukaryotic flagelluma)Is made up of nine microtubule t...
The correct answer is option B.
Explanation:
The axoneme of eukaryotic flagella is an essential structure responsible for the movement of flagella. It is composed of microtubules, which are long, tubular structures made up of protein subunits called tubulin.
Basal Bodies:
Basal bodies are specialized structures that give rise to the axoneme of eukaryotic flagella. They are similar in structure to centrioles and are located at the base of the flagella. Basal bodies are composed of microtubules arranged in a characteristic 9+0 pattern, which means there are nine peripheral microtubule triplets but no central microtubules.
Axoneme Structure:
The axoneme consists of a central pair of microtubules surrounded by nine peripheral microtubule doublets. Each peripheral doublet is composed of two microtubules, making a total of 18 microtubules in the axoneme. The peripheral doublets are arranged in a circular pattern around the central pair.
Function:
The axoneme is responsible for the beating motion of the flagella. The coordinated movement of the microtubules within the axoneme generates the wave-like motion that propels the flagella forward. This movement is facilitated by the sliding of the outer doublets against each other, while the central pair of microtubules remains stationary.
Role of Basal Bodies:
Basal bodies serve as the organizing centers for the axoneme. They provide a template for the assembly of microtubules and play a crucial role in determining the orientation and position of the flagella. The basal bodies anchor the axoneme to the cell membrane and provide structural support for the flagella.
In conclusion, the axoneme of eukaryotic flagella is made up of nine peripheral microtubule doublets and possesses a central pair of microtubules. It arises from the basal bodies, which are centriole-like structures located at the base of the flagella.
Explanation:
The axoneme of eukaryotic flagella is an essential structure responsible for the movement of flagella. It is composed of microtubules, which are long, tubular structures made up of protein subunits called tubulin.
Basal Bodies:
Basal bodies are specialized structures that give rise to the axoneme of eukaryotic flagella. They are similar in structure to centrioles and are located at the base of the flagella. Basal bodies are composed of microtubules arranged in a characteristic 9+0 pattern, which means there are nine peripheral microtubule triplets but no central microtubules.
Axoneme Structure:
The axoneme consists of a central pair of microtubules surrounded by nine peripheral microtubule doublets. Each peripheral doublet is composed of two microtubules, making a total of 18 microtubules in the axoneme. The peripheral doublets are arranged in a circular pattern around the central pair.
Function:
The axoneme is responsible for the beating motion of the flagella. The coordinated movement of the microtubules within the axoneme generates the wave-like motion that propels the flagella forward. This movement is facilitated by the sliding of the outer doublets against each other, while the central pair of microtubules remains stationary.
Role of Basal Bodies:
Basal bodies serve as the organizing centers for the axoneme. They provide a template for the assembly of microtubules and play a crucial role in determining the orientation and position of the flagella. The basal bodies anchor the axoneme to the cell membrane and provide structural support for the flagella.
In conclusion, the axoneme of eukaryotic flagella is made up of nine peripheral microtubule doublets and possesses a central pair of microtubules. It arises from the basal bodies, which are centriole-like structures located at the base of the flagella.
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The axoneme of eukaryotic flagelluma)Is made up of nine microtubule tripletsb)Arises from the centriole like structure called the basal bodiesc)Possesses a single microtubule running parallel to the short axisd)Made up of nine peripheral and two central microtubule doubletsCorrect answer is option 'B'. Can you explain this answer?
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