Contractile Vacuole – Definition, Meaning, & Function with …
2023年2月2日 · Contractile vacuoles are primarily found in freshwater protists, such as amoeba, paramecium, and euglena. They also occur in lower metazoans, such as sponges and hydras.
Contractile vacuole - Wikipedia
Paramecium and Amoeba possess large contractile vacuoles (average diameter of 13 and 45 μm, respectively), which are relatively comfortable to isolate, manipulate and assay. The smallest known contractile vacuoles belong to Chlamydomonas, with a diameter of 1.5 μm.
Contractile vacuole | function, protists, osmoregulation | Britannica
Contractile vacuole, regulatory organelle, usually spherical, found in freshwater protozoa and lower metazoans, such as sponges and hydras, that collects excess fluid from the protoplasm and periodically empties it into the surrounding medium. It may also excrete nitrogenous wastes. In …
Contractile Vacuoles in Microorganisms - Biology LibreTexts
2023年10月31日 · Contractile vacuoles protect a cell from absorbing too much water and potentially exploding by excreting excess water. Wastes, such as ammonia, are soluble in water; they are excreted from the cell along with excess water by the contractile vacuoles.
Contractile vacuoles: a rapidly expanding (and ... - ScienceDirect
2024年6月1日 · Contractile vacuoles are found in freshwater species of almost all major protist lineages (Fig. 2 A). CV-like organelles are even found in a few animals (Metazoa, Amorphea), specifically in Hydra and the pinacocytes of freshwater sponges (Benos and Prusch, 1972, Brauer and McKanna, 1978).
Amoeba: Definition, Structure, & Characteristics with Diagram
2020年10月29日 · Contractile vacuole: A clear transparent body filled with a watery fluid, found in the outer part of the endoplasm. The food captured using pseudopodia are digested, and the wastes are expelled using contractile vacuoles. It also helps to maintain proper water and salt concentrations within the organism. 6.
Contractile Vacuole | Definition, Function & Examples
2023年11月21日 · A contractile vacuole is a membrane-bound organelle found in most organisms in the kingdom Protista. It is a fluid-filled space that expands and contracts to collect and expel excess water. Its...
Amoeba proteus- Nutrition, Respiration, Excretion, Osmoregulation
2023年8月3日 · When the freshwater Amoeba is placed into the saltwater their contractile vacuole decreases and disappears. The main function of the contractile vacuole is osmoregulation, even though carbon dioxide and nitrogenous wastes are also excreted through it.
Contractile Vacuole - an overview | ScienceDirect Topics
The contractile vacuole is an osmoregulatory organelle made of interconnected tubules and vesicles that collect fluid from the cytosol and expels it through transient pores at the plasma membrane. From: International Review of Cell and Molecular Biology, 2016
Regulation of contractile vacuole formation and activity in ...
2008年7月17日 · 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 …