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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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