Types of Cellular Movement — NEET Biology
📚 Practice ConceptCells of the human body exhibit three main types of movements, namely, amoeboid, ciliary and muscular.
Which of the following statements regarding different types of movements in the human body are correct? S1: Amoeboid movement is characteristic of macrophages and leucocytes, involving pseudopodia formed by streaming of protoplasm. S2: The passage of ova through the female reproductive tract is facilitated by coordinated muscular contractions of the smooth muscles lining the tract. S3: Ciliary movement in the trachea helps in removing dust particles and foreign substances inhaled with air. S4: Limb, jaw, and tongue movements in humans are examples of amoeboid movement due to their voluntary nature. S5: Cytoskeletal elements such as microfilaments are crucial for amoeboid movement.
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Correct answer: B — S1, S3 and S5 are correct
Let's evaluate each statement: S1: Amoeboid movement is indeed exhibited by specialised cells like macrophages and leucocytes, and it is effected by pseudopodia formed by streaming of protoplasm. This statement is correct. S2: The passage of ova through the female reproductive tract is facilitated by ciliary movement, not primarily by muscular contractions of smooth muscles, although smooth muscles also play a role in the overall tract function. This statement is incorrect as per the direct role described for cilia. S3: The coordinated movements of cilia in the trachea help in removing dust particles and some foreign substances inhaled along with atmospheric air. This statement is correct. S4: Movement of our limbs, jaws, tongue, etc., require muscular movement, not amoeboid movement. This statement is incorrect. S5: Cytoskeletal elements like microfilaments are involved in amoeboid movement. This statement is correct. Therefore, statements S1, S3, and S5 are correct. The final answer is B.
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