Cytoskeleton, Cilia, Flagella & Centrioles — NEET Biology MCQs with Solutions
Free NEET Biology Cytoskeleton, Cilia, Flagella & Centrioles MCQs with step-by-step solutions (6 questions). Part of Cell: The Unit of Life. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Cytoskeleton, Cilia, Flagella & Centrioles · easy · theory
Cilia and flagella are hair-like extensions of the cell membrane covering a core of microtubules called the:
A. Axoneme ✓ Correct
B. Centromere
C. Cristae
D. Basal body
Solution: The axoneme has a 9 + 2 arrangement of microtubules and arises from a basal body.
Q2 — Cytoskeleton, Cilia, Flagella & Centrioles · easy · theory
The network of filamentous proteins (microtubules, microfilaments) that gives shape and enables movement is the:
A. Cell wall
B. Cytoskeleton ✓ Correct
C. Glycocalyx
D. Endomembrane system
Solution: The cytoskeleton provides mechanical support, shape, motility and intracellular transport.
Q3 — Cytoskeleton, Cilia, Flagella & Centrioles · medium · theory
The characteristic microtubular arrangement of the axoneme in cilia/flagella is:
A. 9 + 2 (nine peripheral doublets + two central) ✓ Correct
B. 9 + 3
C. 9 + 0
D. 11 + 2
Solution: The 9 + 2 pattern (nine peripheral doublets and two central singlets) is diagnostic of cilia/flagella.
Q4 — Cytoskeleton, Cilia, Flagella & Centrioles · medium · theory
Centrioles show a ______ microtubular arrangement and form the ______ of a dividing cell:
A. 11 + 2; nucleoid
B. 9 + 3; grana
C. 9 + 0 (triplets); spindle poles ✓ Correct
D. 9 + 2; cristae
Solution: Centrioles (in the centrosome) have a 9 + 0 triplet arrangement and organise the spindle fibres and basal bodies.
Q5 — Cytoskeleton, Cilia, Flagella & Centrioles · hard · theory
Which correctly distinguishes cilia from flagella?
A. Both have a 9 + 0 axoneme
B. Cilia are numerous and short (coordinated beat); flagella are few and long (undulating) ✓ Correct
C. Flagella are more numerous per cell
D. Cilia are long, flagella short
Solution: Both have a 9 + 2 axoneme; cilia are many/short, flagella few/long, differing in number, length and beat pattern.
Q6 — Cytoskeleton, Cilia, Flagella & Centrioles · hard · theory
The centrosome/centrioles function in animal cells primarily to:
A. Synthesise ATP
B. Store lipids
C. Organise the microtubules of the spindle apparatus during cell division ✓ Correct
D. Digest waste
Solution: The centrosome nucleates spindle microtubules; centrioles also give rise to basal bodies of cilia/flagella.