5
You visited us
5
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Biology
Eukaryotic Cilia/Flagella
How many radi...
Question
How many radial spokes are seen in the axoneme cilium or the flagellum?
Open in App
Solution
Axoneme:
Eukaryotic flagella and cilia have a 9+2 structural arrangement in common.
An axoneme is a name given to its core.
The axoneme is made up of nine pairs of microtubule doublets arranged in a ring around a central pair of singlet microtubules.
The axoneme is made up of bundles of microtubules that are surrounded by a plasma membrane.
Radial spokes:
Each doublet microtubule is made up of A and B protofilament tubules.
They are linked by a protein known as 'tektin.'
A linker made of a protein called nexin connects adjacent pairs of doublet microtubules.
From the central singlets, a second linker radiates to each A tubule of the peripheral microtubules.
Radial spokes are the name given to these linkers.
Suggest Corrections
3
Similar questions
Q.
How many radial spokes are there in a flagellum?
Q.
Electron microscopic study of cilium and flagellum revealed that they are covered with the plasma membrane and the core structure is called "axoneme", possesses a number of microtubules running parallel to the axis. How many numbers of microtubule arrays are arranged peripherally and centrally
Q.
Arrange the following in descending order basing on their numbers.
(A) Number of central microtubules in a cilium
(B) Number of radial spokes in a flagellum
(C) Number of nuclei found in a mature sieve tube cell
(D) Number of peripherals microtubules in a flagellum
Q.
How does cilium differ from flagellum?
Q.
The sites of ATPase activity in flagellum/cilium are
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Cytoskeletal Elements
BIOLOGY
Watch in App
Explore more
Eukaryotic Cilia/Flagella
Standard XII Biology
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Solve
Textbooks
Question Papers
Install app