Editing Chlamydomonas (section)

=== Morphology===
All ''Chlamydomonas'' are motile, unicellular organisms. Cells are generally spherical to cylindrical in shape, but may be elongately spindle-shaped,<ref name=AlgaeBase/> and a papilla may be present or absent. Chloroplasts are green and usually cup-shaped.<ref name="Guiry2007">{{Cite book |title=New survey of Clare Island |date=1999 |publisher=Royal Irish Academy |isbn=978-1-874045-71-7 |editor-last=Mac Cárthaigh |editor-first=Críostóir |location=Dublin |editor-last2=Whelan |editor-first2=Kevin |editor-last3=Graham |editor-first3=John Rollisson |editor-last4=Synnott |editor-first4=Donal M. |editor-last5=Royal Irish Academy}}</ref> A key feature of the genus is its two anterior flagella, each as long as the other.<ref name="Harris">{{Cite book |url=https://linkinghub.elsevier.com/retrieve/pii/B9780123708731000010 |title=The Chlamydomonas Sourcebook |date=2009 |publisher=Elsevier |isbn=978-0-12-370873-1 |pages=1–24 |language=en |doi=10.1016/b978-0-12-370873-1.00001-0}}</ref> The flagellar [[microtubule]]s may each be disassembled by the cell to provide spare material to rebuild the other's microtubules if they are damaged.<ref name="Gelfand-Bershadsky-1991">{{cite journal | last1=Gelfand | first1=Vladimir I. | last2=Bershadsky | first2=Alexander D. | title=Microtubule Dynamics: Mechanism, Regulation, and Function | journal=[[Annual Review of Cell Biology]] | publisher=[[Annual Reviews (publisher)|Annual Reviews]] | volume=7 | issue=1 | year=1991 | issn=0743-4634 | doi=10.1146/annurev.cb.07.110191.000521 | pages=93–116| pmid=1809357 }}</ref>

* Cell wall is made up of a glycoprotein and non-cellulosic polysaccharides instead of cellulose.
* Two anteriorly inserted whiplash flagella. Each flagellum originates from a basal granule in the anterior [[papillate]] or non-papillate region of the cytoplasm. Each flagellum shows a typical 9+2 arrangement of the component fibrils.
* Contractile vacuoles are 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.