Question

say about clamydamonas?

Answer 1

they are the unicellular plants

Answer 2

Chlamydomonas is a genus of green algaeconsisting of unicellular flagellates, found in stagnant water and on damp soil, in freshwater, seawater, and even in snow as "snow algae".[1]Chlamydomonas is used as amodel organism for molecular biology, especially studies of flagellar motility andchloroplast dynamics, biogeneses, and genetics. One of the many striking features ofChlamydomonas is that it contains ion channels, (channelrhodopsins), that are directly activated by light. Some regulatory systems of Chlamydomonas are more complex than their homologs inGymnosperms, with evolutionarily related regulatory proteins being larger and containing additional domains.[2]

Chlamydomonas



SEM image of flagellated Chlamydomonas (10000×)

Scientific classification

Domain:

Eukaryota

Kingdom:

Plantae

Division:

Chlorophyta

Class:

Chlorophyceae

Order:

Chlamydomonadales

Family:

Chlamydomonadaceae

Genus:

Chlamydomonas
Ehrenb.

Species

See text

Molecular phylogeny studies indicated that the traditional genus Chlamydomonas defined using morphological data was polyphyleticwithin Volvocales, and many species were reclassified (e.g., in Oogamochlamys,Lobochlamys), and many other "Chlamydomonas" lineages are to be reclassificated.[3][4][5]



Drawings of Chlamydomonas caudata Wille.[6]



Cross section of a Chlamydomonas reinhardtii algae cell, a 3D representation



Light micrograph of Chlamydomonas without flagella

Species

Chlamydomonas caudata Wille

Chlamydomonas elegans G.S.West 1915

Chlamydomonas moewusii

Chlamydomonas nivalis

Chlamydomonas ovoidae

Chlamydomonas reinhardtii[7]

Ecology

It is generally found in habitat rich in ammonium salt. Chlamydomonas possesses red eye spots for photosensitivity and reproduces by both asexual and sexual means.

Chlamydomonas's asexual reproduction goes through Zoospores, Palmella stage, Aplanospores and Hypnospores; sexual reproduction through isogamy, anisogamy or oogamy.

Nutrition

Most species are obligate phototrophs but C. reinhardtii and C. dysosmos are facultative heterotrophs that can grow in the dark in the presence of acetate as a carbon source.

Morphology

Motile unicellular algae.

Generally oval in shape.

Cell wall is made up of glycoprotein and non cellulosic polysaccharides instead of cellulose.

Two anteriorly inserted whiplash flagella. Flagella originates from a basal granule located in the anterior papillate or non-papillate region of the cytoplasm. Flagellum shows typical 9+2 arrangement of the component fibrils.

Contractile vacuoles found at near the bases of flagella.

Prominent cup or bowl shaped chloroplast is present. The chloroplast contains bands composed of a variable number of the photosynthetic thylakoids which are not organised into grana-like structures.

The nucleus is enclosed in a cup-shaped chloroplast, which has a single large pyrenoid where starch is formed from photosynthetic products. Pyrenoid with starch sheath is present in the posterior end of the chloroplast.

Eye spot present in the anterior portion of the chloroplast. It consists of two or three, more or less parallel rows of linearly arranged fat droplets.

pls mark it as brainliest