What are flame cells in planarians?
A flame cell is a specialized excretory cell found in the simplest freshwater invertebrates, including flatworms, rotifers and nemerteans; these are the simplest animals to have a dedicated excretory system. Flame cells function like a kidney, removing waste materials. Bundles of flame cells are called protonephridia.
How does the flame cell function in a planarian?
Flame Cells of Planaria 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 Flame cell in planaria and what is it for?
Flame cells are found in flatworms, including parasitic tapeworms and free-living planaria. They also maintain the organism’s osmotic balance. Figure 41.10 In the excretory system of the (a) planaria, cilia of flame cells propel waste through a tubule formed by a tube cell.
How do the nephridia of annelids compared to the flame cells of flatworms?
How do the nephridia of annelids compare to the flame cells of flatworms? They are more complex & organized into discrete excretory units to handle the metabolic waste of each segment separately. Why must terrestrial annelids such as earthworms maintain a moist skin surface?
What are flame cells Class 11?
Flame cells is a specialised excretory cell found in the simplest freshwater invertebrates, including flatworms. They function like a kidney, removing waste material. It is a hollow cup shaped cell containing a bunch of cilia, whose movement draws in waste products and wafts them out through a tubule.
What is meant by 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)
What is Flame cell Class 11?
Which phylum phyla have flame cells as part of their excretory system?
The flame cells are found in phylum platyhelminthes. Flame cells are work like excretory organ. It helps in excretion in animals.
What are flame cells Class 9?
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.
What are the excretory organs of Planaria?
The planarian excretory system is made up of protonephridia, which are branched organs that are widely distributed throughout the body.
What is Flame cell class 9?
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. 1.5 (1)
What is Flame cell Class 10?
Why are planaria flatworms called flame cells?
Planaria are flatworms that live in fresh water. Their excretory system consists of two tubules connected to a highly branched duct system. 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, as illustrated in the figure below.
How are the cilia of planaria propel waste?
In the excretory system of the (a) planaria, cilia of flame cells propel waste through a tubule formed by a tube cell. Tubules are connected into branched structures that lead to pores located all along the sides of the body. The filtrate is secreted through these pores.
What kind of body does a Planaria have?
In this article we will discuss about the structure of Planaria (Dugesia) with the help of a diagram. 1. Commonly called planaria and is a fresh water form of cosmopolitan distribution. 2. The body is elongated, flattened and some-what conical.
What is the structure of a flaming cell?
The typical structure of a flaming cell is elongated and mononuclear. Its form evolved in such a way that it allowed to carry out different branched life processes in the surrounding tissues of the cell. In the center of the flaming cell is an easily observable bulbous bulbous cavity.