Contents
- 1 What would happen to a paramecium if the contractile vacuole stopped working?
- 2 What would happen if the vacuole stopped working?
- 3 In which protozoans contractile vacuoles are absent?
- 4 Why are contractile vacuoles useless in salt water?
- 5 Where are contractile vacuoles found?
- 6 What is a contractile vacuole and its function?
- 7 What happens if Euglena did not have a contractile vacuole?
- 8 How does the vacuole work in a cell?
What would happen to a paramecium if the contractile vacuole stopped working?
If the paramecium was not able to contract its contractile vacuole, it would be in danger of bursting. The cell would not be able to hold too much water. This would happen faster if the paramecium was in water with a low salt concentration because there is more water and less salt, so the water would accumulate faster.
What would happen if the vacuole stopped working?
If a cell did not have a vacuole, it would be unable to carry out its usual functions and would eventually die. In plants, the vacuole plays an important role in water storage and the maintenance of structure. When this happens, the vacuole can take up as much as 90 percent of the cell’s volume.
What happens if contractile vacuole is absent?
(cytosol) Without a contractile vacuole, the cell would fill with excess water and, eventually, burst, because the surrounding water is hypotonic when considered with respect to the contents of the cell, water is transferred or passed across the amoeba’s cell membrane by osmosis.
What would happen if contractile vacuole is absent in amoeba?
In freshwater amoeba, the contractile vacuole is necessary because freshwater has a lower concentration of solutes than the amoeba’s own internal fluids. So if the contractile vacuole is absent in freshwater amoeba then the cell will fill with excess of water and eventually burst out.
In which protozoans contractile vacuoles are absent?
Contractile vacuoles and food vacuoles are absent in the class-Sporozoa of phylum-Protozoa e.g., Trypanosoma sp.
Why are contractile vacuoles useless in salt water?
In salt water, the solute concentration outside the cell is more than inside the cell so the water flows out of the cell down the concentration gradient. Therefore contractile vacuoles are not required for expelling water.
What will most likely happen in the absence of vacuole?
A vacuole, a membrane-bound sac, which is found in the cytoplasm of a cell provides structural support and aids in other pertinent functions such as storage, protection, growth, and waste disposal. Hence, in the absence of which, a cell will not function properly.
Why do we need vacuoles?
A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance. Sometimes a single vacuole can take up most of the interior space of the plant cell.
Where are contractile vacuoles found?
freshwater protozoa
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.
What is a contractile vacuole and its function?
A contractile vacuole (CV) is an organelle, or sub-cellular structure, that is involved in osmoregulation and waste removal. Thus, the CV acts as a protective mechanism against cellular expansion (and possibly explosion) from too much water; it expels excess water from the cell by contracting.
https://www.youtube.com/watch?v=yB-BgBpx6cc
What happens if the cell does not have a contractile vacuole?
A contractile vacuole is an organelle from a protist cell. It forces water out of the pores to reduce osmotic pressure and prevents the cell from bursting. What would happen if euglena did not have a contractile vacuole?
What happens to the contractile vacuole during a flood?
The contractile vacuole basically stores the extra water, in cells (mostly ciliates) in itself, so if there’s a change in environment, a drought for example, the contractile vacuole can release more water into the cell. But if there’s a flood, this vacuole will suck a lot of excess water out.
What happens if Euglena did not have a contractile vacuole?
What would happen if euglena did not have a contractile vacuole? As the osmotic pressure of water, water going down it’s concentration gradient, built up in the cell there would be increasing pressure on the cell membrane and without the vacuole to relieve this pressure the cell would burst. What is contractile vacuole?
How does the vacuole work in a cell?
When this happens, the vacuole can take up as much as 90 percent of the cell’s volume. The vacuole in both plant and animal cells also functions as a waste receptacle, keeping harmful molecules separate from the cell’s interior. In addition, it works to store organic and non-organic molecules as well as break down extremely complex molecules.