NEET Biology: Types of movement-ciliary Practice Questions
14 free multiple-choice questions on Types of movement-ciliary (Locomotion and Movement) for NEET Biology, each with the correct answer and a step-by-step explanation. Attempt a question, then reveal the solution to check your reasoning.
Practice thousands more NEET questions in the app →Q1. The arrangement of the microtubule doublets in the axoneme of a cilium or flagellum is typically organized in a pattern of:
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Correct answer: A — Nine+2 arrangement
The characteristic structure of motile cilia and flagella is the 9+2 arrangement of microtubule doublets, which forms the core structure for movement.
Q2. Which cellular structures are responsible for generating the movement in many protists and some eukaryotic cells?
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Correct answer: B — Cilia
Cilia are short, hair-like projections on the cell surface that move to facilitate locomotion or feeding.
Q3. Which term describes the type of movement where cilia beat in a coordinated, wave-like fashion?
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Correct answer: B — Metachronal wave
Cilia often exhibit a metachronal wave pattern, where the beating is coordinated in a wave-like sequence across the surface.
Q4. In some specialized cells, small projections that move by extending and retracting are known as:
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Correct answer: D — Pseudopodia
Pseudopodia (false feet) are temporary extensions of the cell membrane used for amoeboid movement.
Q5. Cilia are typically found on the surface of epithelial cells primarily to facilitate which process?
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Correct answer: A — Movement of fluids or mucus
The primary function of cilia is to move fluids or mucus over the cell surface, aiding in processes like moving mucus in the respiratory tract or sperm motility.
Q6. Which term is used to describe the arrangement of cilia in a specific direction on a cell surface, often leading to coordinated movement?
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Correct answer: C — Single-file arrangement
Cilia are often arranged in a coordinated manner, such as a single-file line, which allows for synchronized beating or movement.
Q7. Where are motile cilia typically found in the human respiratory tract?
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Correct answer: A — Trachea and bronchi
Cilia are abundant in the respiratory tract (trachea and bronchi) where they function to sweep mucus and trapped particles, aiding in the movement of air and mucus.
Q8. The general structure of a cilium is fundamentally derived from which part of the eukaryotic cell?
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Correct answer: D — Microtubules
Cilia and flagella are extensions of the cytoplasm, and their internal structure (axoneme) is built upon the microtubule arrangement of the cell.
Q9. In non-motile cilia, their primary role is generally associated with which function?
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Correct answer: C — Sensory reception
While some cilia are motile, non-motile cilia often serve roles in sensory reception or facilitating molecular signaling, rather than bulk movement.
Q10. The beating motion of cilia typically involves which type of fluid interaction to generate movement?
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Correct answer: D — Waving or beating motion
Movement of cilia is achieved through coordinated, rhythmic beating or waving motion, which pushes the surrounding fluid.
Q11. Which structure is characteristic of unicellular organisms that use coordinated movements for movement?
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Correct answer: A — Cilia
Cilia are the primary appendages used by many single-celled organisms for movement and interaction with the environment.
Q12. Which of the following structures are hair-like projections found on the surface of some cells?
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Correct answer: A — Cilia
Cilia are short, hair-like projections found on the surface of many cells, used for various functions like movement and fluid movement. Flagella are long, whip-like structures, and microvilli are finger-like projections.
Q13. The coordinated beating motion of cilia is primarily powered by the sliding of which protein structure?
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Correct answer: D — Dynein
Ciliary movement is driven by the sliding action of the microtubule doublets, powered by the motor protein dynein.
Q14. The fundamental structural unit of the axoneme, which underlies the movement of cilia, is the arrangement of:
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Correct answer: C — Microtubules
The core structure of motile cilia and flagella is the 9+2 arrangement of microtubule doublets (axoneme).
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