What is meant by flame cell?
Definition of flame cell : a hollow cell that has a tuft of vibratile cilia and is part of some lower invertebrate excretory systems (as of a platyhelminthic worm)
Where are flame cells?
Flame cells are found in flatworms, including parasitic tapeworms and free-living planaria. They also maintain the organism’s osmotic balance. Figure 22.10. In the excretory system of the (a) planaria, cilia of flame cells propel waste through a tubule formed by a tube cell.
What is flame cell Class 11?
Flame cells are the specialized cells found in the lower invertebrates like flatworms, rotifers and nemerteans. These cells function as the functional and structural unit of the excretory system in the invertebrates. Just like kidney cells, it excretes the waste material from the body of the respective organism.
What are flame cells zoology?
flame cell. noun. an organ of excretion in flatworms: a hollow cup-shaped cell containing a bunch of cilia, whose movement draws in waste products and wafts them to the outside through a connecting tubule.
What are flame cells Class 10?
Flame cells are the excretory structures in Platyhelminthes, rotifers, some annelids and the cephalochordate-Amphioxus. These are the simplest animals to have a dedicated excretory system. Was this answer helpful?
What is protonephridia and Metanephridia?
Protonephridia refer to the tubular, excretory structures in certain invertebrates, usually ending internally in flame cells and having an external pore, while metanephridia refer to primitive excretory organs present in many invertebrates, originating in a ciliated coelomic funnel.
How do flame cells work?
Flame cells function like a kidney, removing waste materials through filtration. The cilia propel waste matter down the tubules and out of the body through excretory pores that open on the body surface; cilia also draw water from the interstitial fluid, allowing for filtration.
In which phylum are flame cells found?
phylum Platyhelminthes
Flame cells are excretory organs, present in the phylum Platyhelminthes (flatworms).
What are flame cells Ncert?
Protonephridia or flame cells are the excretory structures in Platyhelminthes (Flatworms, e.g., Planaria), rotifers, some annelids and the cephalochordate – Amphioxus. Protonephridia are primarily concerned with ionic and fluid volume regulation, i.e., osmoregulation.
What is the function of the flame cells?
What is protonephridia and metanephridia?
Why are flame cells so named?
The cells in the tubules are called flame cells (or protonephridia) because they have a cluster of cilia that looks like a flickering flame when viewed under the microscope. Flame cells function like a kidney, removing waste materials through filtration.
What is the function of flame cells?
– exclusively perform an excretory function – can perform many functions, one of which is excretion of metabolic wastes – originate from the cell membrane – both b and c
What does flame cell stand for?
Flame cells (protonephridia) are the part of excretory system of platyhelminthes ( flat worms)
What do flame cells do?
Light: the eyespots can detect light and allow the flatworms to react to it.
What is the meaning of flame cells?
flame cell. n. A hollow cell in the excretory system of certain invertebrates, including flatworms and rotifers, containing a tuft of rapidly beating cilia that serve to propel waste products into excretory tubules. American Heritage® Dictionary of the English Language, Fifth Edition.
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