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    What cells help in osmoregulation in platyhelminthes?
    Question

    What cells help in osmoregulation in platyhelminthes?

    A.

    Nerve cells

    B.

    Flame cells

    C.

    Ganglia

    D.

    Hooks

    Correct option is B

    The correct answer is (b) Flame cells.

    • Flame cells are specialized cells in platyhelminthes (flatworms) that play a crucial role in osmoregulation, which is the process of maintaining the balance of water and salts in the body.
    • These cells are part of the excretory system and function by filtering waste materials and excess water from the body fluids, helping to regulate osmotic pressure.
    • Function:Help in osmoregulation and excretion by filtering out excess water and waste.
    • Structure:They have a tuft of cilia that resembles a flickering flame, hence the name.
    • Location:Found in the excretory system of flatworms like planarians

    Information Booster:

    Nerve Cells:

    • Structure: Composed of a cell body, dendrites, and an axon.
    • Types: Sensory neurons (carry signals to the brain), motor neurons (send signals from the brain to muscles), and interneurons (connect neurons within the brain and spinal cord).
    • Role in Flatworms: Coordinate movement and response to environmental stimuli.

    Ganglia:

    • Location: Found in the anterior part of flatworms, functioning as a simple brain.
    • Function: Process sensory information and control motor functions.
    • Significance: Allows flatworms to exhibit basic behaviors like movement and feeding.

    Hooks:

    • Presence: Found in parasitic flatworms, especially cestodes (tapeworms).
    • Function: Aid in attaching to the host’s intestinal wall.
    • Adaptation: Evolved as a key feature for parasitism, ensuring the worm remains attached and can absorb nutrients from the host.

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