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Sarcodines are unicellular, jelly-like protozoa found in fresh or sea water and in moist soil. Their body lacks a periplast. Therefore, they may be naked or covered by a calcareous shell. They usually lack flagella and have temporary protoplasmic outgrowths called pseudopodia. These pseudopodia or false feet help in movement and capturing prey. They include free living forms such as Amoeba or parasitic forms such as Entamoeba. Zoo flagellates ciliates and sporozoans are other groups of protozoan protists. They are all unicellular and heterotrophic. They may be holozoic, saprobic or parasitic.


Q. Which of the following is not the locomotory organ of protozoa.

  • a)
    Cilia

  • b)
    Flagella

  • c)
    none

  • d)
    Pseudopodia

Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Sarcodines are unicellular, jelly-like protozoa found in fresh or sea ...
Pseudopodia are the locomotory organ of Amoeba. Protozoa have cilia and flagella as their locomotory organ.
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Sarcodines are unicellular, jelly-like protozoa found in fresh or sea ...
Explanation:

Protozoa: Protozoa are a diverse group of unicellular eukaryotic organisms. They are classified under Kingdom Protista. Protozoa are characterized by their ability to move independently, mainly through the use of specialized locomotory organs.

Locomotory Organs of Protozoa: The locomotory organs of protozoa include cilia, flagella, and pseudopodia. These structures aid in movement and allow protozoa to navigate through their environment.

Cilia: Cilia are short, hair-like projections that cover the surface of certain protozoa. They are present in large numbers and beat in coordinated waves, propelling the organism through its surroundings. Cilia are found in various protozoan groups such as ciliates.

Flagella: Flagella are long, whip-like appendages that protrude from the surface of certain protozoa. They are responsible for the forward propulsion of the organism. Flagella are found in different protozoan groups such as flagellates, including the well-known organism Trypanosoma, which causes African sleeping sickness.

Pseudopodia: Pseudopodia are temporary cytoplasmic extensions or "false feet" that are used by certain protozoa for movement and capturing prey. Pseudopodia are characteristic of amoeboid protozoa, such as the free-living Amoeba and the parasitic Entamoeba. These extensions are formed by the flow of cytoplasm, allowing the organism to change shape and move in the direction of the pseudopodium.

Answer: The correct answer is option D, pseudopodia. Pseudopodia are actually considered as locomotory organs of protozoa. They are temporary protoplasmic outgrowths that aid in movement and capturing prey. Therefore, all the given options (a, b, c) are locomotory organs of protozoa, while pseudopodia are one of the locomotory organs.
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Sarcodines are unicellular, jelly-like protozoa found in fresh or sea ...
Amoeba is protozoa...or ...?
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Sarcodines are unicellular, jelly-like protozoa found in fresh or sea water and in moist soil. Their body lacks a periplast. Therefore, they may be naked or covered by a calcareous shell. They usually lack flagella and have temporary protoplasmic outgrowths called pseudopodia. These pseudopodia or false feet help in movement and capturing prey. They include free living forms such as Amoeba or parasitic forms such as Entamoeba. Zoo flagellates ciliates and sporozoans are other groups of protozoan protists. They are all unicellular and heterotrophic. They may be holozoic, saprobic or parasitic.Q. Which of the following is not the locomotory organ of protozoa.a)Ciliab)Flagellac)noned)PseudopodiaCorrect answer is option 'D'. Can you explain this answer?
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Sarcodines are unicellular, jelly-like protozoa found in fresh or sea water and in moist soil. Their body lacks a periplast. Therefore, they may be naked or covered by a calcareous shell. They usually lack flagella and have temporary protoplasmic outgrowths called pseudopodia. These pseudopodia or false feet help in movement and capturing prey. They include free living forms such as Amoeba or parasitic forms such as Entamoeba. Zoo flagellates ciliates and sporozoans are other groups of protozoan protists. They are all unicellular and heterotrophic. They may be holozoic, saprobic or parasitic.Q. Which of the following is not the locomotory organ of protozoa.a)Ciliab)Flagellac)noned)PseudopodiaCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Sarcodines are unicellular, jelly-like protozoa found in fresh or sea water and in moist soil. Their body lacks a periplast. Therefore, they may be naked or covered by a calcareous shell. They usually lack flagella and have temporary protoplasmic outgrowths called pseudopodia. These pseudopodia or false feet help in movement and capturing prey. They include free living forms such as Amoeba or parasitic forms such as Entamoeba. Zoo flagellates ciliates and sporozoans are other groups of protozoan protists. They are all unicellular and heterotrophic. They may be holozoic, saprobic or parasitic.Q. Which of the following is not the locomotory organ of protozoa.a)Ciliab)Flagellac)noned)PseudopodiaCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Sarcodines are unicellular, jelly-like protozoa found in fresh or sea water and in moist soil. Their body lacks a periplast. Therefore, they may be naked or covered by a calcareous shell. They usually lack flagella and have temporary protoplasmic outgrowths called pseudopodia. These pseudopodia or false feet help in movement and capturing prey. They include free living forms such as Amoeba or parasitic forms such as Entamoeba. Zoo flagellates ciliates and sporozoans are other groups of protozoan protists. They are all unicellular and heterotrophic. They may be holozoic, saprobic or parasitic.Q. Which of the following is not the locomotory organ of protozoa.a)Ciliab)Flagellac)noned)PseudopodiaCorrect answer is option 'D'. Can you explain this answer?.
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