What is cytostome and Cytopyge?
cy·to·stome (sī’tō-stōm), The cell “mouth” of certain complex protozoa, usually with a short gullet or cytopharynx leading food into the organism, where it is collected into food vacuoles, then circulated inside the body, eventually to be excreted through the cytopyge.
What is Cytosome in biology?
noun Biology. the cytoplasmic part of a cell.
What is difference between cytostome and cytopharynx?
The cytostome is the opening on the cell surface that further leads to an invagination. This invagination is formed by the cytopharynx, which is the tube-like passageway, often directed towards the posterior of the cell. The cytopharynx does not have cilia but they have microtubules that surround it.
What is Cytosome paramecium?
Cytostome is a narrow aperture in the cell membrane of Paramecium through which food particles enters into the cell.
What is Cytosome parasitology?
The cytostome is a plasma membrane invagination coupled to a few special microtubules that penetrate the cell almost to the nucleus. There is a specialized region of the membrane lining the parasite that starts in the opening of the cytostome and projects toward the flagellar pocket.
Is cytostome an organelle?
Cytostome meaning (microbiology) A cellular organelle found only in certain protozoa; it is specialized for phagocytosis, and usually has the form of a microtubule-supported funnel or groove.
What is Cytosome and its function?
A cytostome (from cyto-, cell and stome-, mouth) or cell mouth is a part of a cell specialized for phagocytosis, usually in the form of a microtubule-supported funnel or groove. Food is directed into the cytostome, and sealed into vacuoles.
What is meant by cytostome?
Medical Definition of cytostome : the mouth of a unicellular organism.
What is the contractile vacuole for?
The contractile vacuole (CV) complex is an osmoregulatory organelle of free-living amoebae and protozoa, which controls the intracellular water balance by accumulating and expelling excess water out of the cell, allowing cells to survive under hypotonic stress as in pond water.
What is the function of cytostome in euglena?
Cytostome and cytopharynx: Cytostome leads into a short tubular cytopharynx or gullet which, in turn, joins a large spherical vesicle, the reservoir or flagellar sac. The cytostome and cytopharynx are not used for ingestion of food but as a canal for escape of fluid from the reservoir.
What is the meaning of cytostome?
What is Cytopyge?
: the point especially if permanently identifiable at which waste is discharged from the protozoan body.
Is the mouth a part of the cytostome?
A cytostome (from cyto-, cell and stome-, mouth) or cell mouth is a part of a cell specialized for phagocytosis, usually in the form of a microtubule-supported funnel or groove. Food is directed into the cytostome, and sealed into vacuoles.
How does the cytostome and cytopharynx complex work?
The cytostome-cytopharynx complex functions as follows: macromolecules to be taken up by a cell enter the cytostome. Macromolecules then pass into the lumen of the cytopharynx and are transported to the posterior end of the cell where they are put into budding vesicles that are transported to others parts of the cell.
How is the cytostome associated with macromolecules?
In these instances, the cytostome imports macromolecules by directly forming vesicles that are imported into the interior of the cell. The cytostome is associated with microtubules that function in maintaining its form.
Is the cytostome of a protozoa apical or lateral?
Ciliophora is a phylum of protozoa. The cytostome in this phyla can be either apical or lateral. The cytostome-cytopharynx complex functions as follows: macromolecules to be taken up by a cell enter the cytostome.