What is the function of the contractile vacuole?

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.

Does euglena have food vacuole?

Although they are capable of making their own food, they are also heterotrophic, which means that they also consume food. In the vacuole, enzymes are released to digest the food particle. Euglena also has a contractile vacuole that helps collect and remove excess fluids from the cell.

What is the function of a euglena?

When acting as a autotroph, the Euglena utilizes its chloroplasts (which gives it the green colour) to produce sugars by photosynthesis, when acting as a heterotroph, the Euglena surrounds the particle of food and consumes it by phagocytosis, or in other words, engulfing the food through its cell membrane.

What does the reservoir do in a euglena?

Reservoir: part of a euglena used for storage. Nucleus: central organelle of a euglena. Contractile vacuole: cavity of the euglena that is able to contract.

Does euglena have vacuole?

Euglena are characterized by an elongated cell (15–500 micrometres [1 micrometre = 10−6 metre], or 0.0006–0.02 inch) with one nucleus, numerous chlorophyll-containing chloroplasts (cell organelles that are the site of photosynthesis), a contractile vacuole (organelle that regulates the cytoplasm), an eyespot, and one …

Is paramecium a plant or animal?

A paramecium is animal-like because it moves and searches for its own food. The have characteristics of both plant and animal. Sometimes they make food and sometimes they don’t. An amoeba is animal-like because of its ability to move.

Is euglena an algae?

Euglena, like most algae, gathers sunlight and uses photosynthesis for food.

What is true euglena?

Euglena is a flagellate organism. Euglena when placed in continous darkness, loses its photosynthetic activity and dies. The pigments of Euglena are quite different from those of green plants. Euglena is a marine protist.

Is Volvox multicellular or unicellular?

How does Volvox compare to plants, animals, and other multicellular organisms with respect to the sorts of processes it has evolved? In a way, Volvox exhibits a relatively streamlined type of multicellularity. It possesses just two cell types, and these cells are not organized into tissues or organs.

Is Pandorina unicellular or multicellular?

The volvocine algae range in complexity from unicellular Chlamydomonas through colonial genera (such as Gonium, Pandorina, and Eudorina) to multicellular organisms and are capable of both asexual and sexual reproduction.

Is Ulothrix unicellular?

They are Eukaryotic and multicellular because the cells have specific functions as the lowermost cell serves as holdfast and it doesn’t have chloroplast, and the apical cell is dome-shaped. The genus includes: Ulothrix aequalis Kützing.

Is Ulothrix motile or nonmotile?

Ulothrix reproduces vegetatively by fragmentation, asexually by nonmotile resting spores (aplanospores) and motile quadriflagellate spores (zoospores), and sexually by biflagellate gametes. Ulothrix (highly magnified), a type of filamentous green algae.

Is Volvox motile or nonmotile?

In some related species, sexual fusion is between larger and smaller motile cells, which may be called male and female; the female gametes may, as in the colonial genus Volvox, lose their flagella and become nonmotile, so becoming more like eggs.

Is Volvox harmful to humans?

Volvox are not harmful to humans, (they don’t have toxins to make you sick), but they form algae blooms that can harm the ecosystem.

How does euglena obtain energy?

Euglenas create their own food through photosynthesis, the process of absorbing sunlight to synthesize foods from carbon dioxide and water. An eyespot at the front end of the euglena detects light, and its chloroplasts (structures that contain chlorophyll) trap the sunlight, allowing photosynthesis to occur.

How does amoeba get energy?

Amoebas obtain energy by capturing and digesting smaller organisms and organic matter from their environment. This means they are heterotrophic.