Cilia and Flagella Contain Nine Pairs of ________ Surrounding a Central

Question

Cilia and flagella contain nine pairs of ________ surrounding a central pair.
A) microvilli
B) microfilaments
C) microsomes
D) microtubules
E) intermediate filaments

Accepted Answer

Cilia and flagella are composed of microtubules, which are cylindrical structures made up of nine triplet microtubules surrounding a central pair of microtubules. This arrangement is known as the "9+2" structure.