Ulothrix is a genus of filamentous green algae which are found in marine and fresh waters habitats. They have a single girdle-shaped or band-shaped chloroplast near the peripheral region of the cytoplasm.
Which shape of chloroplast is present in Volvox?
Volvox, genus of some 20 species of freshwater green algae (division Chlorophyta) found worldwide. Volvox form spherical or oval hollow colonies that contain some 500 to 60,000 cells embedded in a gelatinous wall and that are often just visible with the naked eye.
What is the shape of chloroplast in Zygnema *?
Unbranched filamentous zygnematalean with cylindrical cells, each containing 2 green star-shaped axial chloroplasts. Nucleus often visible between the chloroplasts.
What is cap cell in Oedogonium?
Cap cells are found in algae oedogonium.
In filaments of algae order oedogoniales, towards the upper end of some cells a ring like structure is present called cap or apical cap.
Does Ulothrix have chloroplast?
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 Oedogonium unicellular or multicellular?
Oedogonium, genus of filamentous green algae (family Oedogoniaceae), commonly found in quiet bodies of fresh water. They often are attached to other plants or exist as a free-floating mass. Oedogonium filaments are typically unbranched and only one cell thick.
What is the shape of Oedogonium?
Cells of the genus Oedogonium are narrow and cylindrical in shape. The algal body consists of green, un-branched, and multi-cellular filaments, arranged end to end.
What is shape of chloroplast?
Chloroplasts are a type of plastid—a round, oval, or disk-shaped body that is involved in the synthesis and storage of foodstuffs. Chloroplasts are distinguished from other types of plastids by their green colour, which results from the presence of two pigments, chlorophyll a and chlorophyll b.
Which type of chloroplasts are present in the members of Class Chlorophyceae?
Often classified as Green Algae are chlorophyceae. Chloroplasty in such algae includes pigments such as chlorophyll-a, b, carotene, and xanthophyll. The cell is composed of cellulose.
Who has star shaped chloroplast?
In the world of filamentous freshwater algae of division Chlorophyta, the genus Zygnema, with its two stellate (star shaped) chloroplasts per cell, is a standout.
Which of the following best defines the shape of Oedogonium chloroplast?
Explanation: The shape of the chloroplast in chara is discoid shaped, in chlamydomonas is cup-shaped , in Ulothrix is Girdle shaped, in Spirogyra is spiral shaped and in Oedogonium is reticulate shaped.
What is meant by Oedogonium?
Definition of Oedogonium
: a genus (the type of the family Oedogoniaceae) of freshwater green algae that have long unbranched filaments usually free-floating when mature but attached by special basal cells when young.
Which pigment is present in Chlorophyceae?
The Chlorophyceae contain chlorophyll a and b, zeaxanthin and lutein, together with a minor proportion of less typical carotenoids.
What does Oedogonium do?
Oedogonium forms elongate filaments of cells, most of which are non-flagellated, cylindrical and have a cell wall that contains both cellulose and chitin. These cells are vegetative, i.e. are not associated with reproduction but only associated with photosynthesis and growth of the filament.
What type of algae is Ulothrix?
Ulothrix, genus of filamentous green algae (family Ulotrichaceae) found in marine and fresh waters. Each cell contains a distinct nucleus, a central vacuole, and a large thin chloroplast with at least one pyrenoid. The specialized cell for attachment is called the holdfast, and the filaments are typically unbranched.
What is the shape of chloroplast in 36?
So, the correct answer is ‘Girdle-shaped’.
