Explain phylum cyanobacteria, Biology

Assignment Help:

Phylum Cyanobacteria

Cyanobacteria  are prokaryotes,  but  they are not  like bacteria  in  the usual  sense of  the word.  The cyanobacteria  lack chloroplasts,  and  their  light capturing pigment  is  scattered  over,  highly  folded inner membrane  lamellae. However,  their  photosynthetic mechanism differ from that of other bacteria. Like plants, they derive  their required electrons by breaking apart water molecules. The blue-greens have an  important  ability  to 'fix'  nitrogen,

1)  Unicellular or filamentous, some of  the filamentous  forms bear branches.

2)  Autotrophic, the  photosynthesis  is  carried  out on membranes  round  the  periphery of  the cells.

3)  Photosynthetic pigments include chlorophyll plus  red  pigment (phycoerythin)  and  blue pigmerlt (phycocyanin).  Some examples Chroococcus,  Arlabaena 

 


Related Discussions:- Explain phylum cyanobacteria

Formation of gemmules, Formation of Gemmules Throughout the formation...

Formation of Gemmules Throughout the formation of gemmules, masses of food - laden amoebocytes called archaeocytes feed on other cells and lay down in within them. They get s

Explain the composition of macconkey agar, Explain the Composition of MacCo...

Explain the Composition of MacConkey Agar? Bactopeptone - 17.0 gm Protease Peptone - 3.0 gm Lactose - 10.0 gm Bile salt mixture - 1.5 gm Sodium chloride - 5.0 gm

What are the types of antigenic agents, Q. What are the types of antigenic ...

Q. What are the types of antigenic agents that may constitute vaccines? Vaccines can be constituted of dead agents of disease, of inactivated toxins, of inactivated agents of d

What is the physiological explanation for the daltonism, What is the type o...

What is the type of genetic inheritance of daltonism? Is daltonism more frequent in men or in women? What is the physiological explanation for the daltonism ? The Daltonism

Structure and function of triacylglycerols , Triacylglycerols  which is als...

Triacylglycerols  which is also  known as  triglycerides or fats  consist  of  three  fatty  acid chains  esterified  to  a  glycerol  backbone.  Simple  triacylglycerols   have  t

Which disease is associated with rapid dehydration, Which disease is associ...

Which disease is associated with the following symptoms? Sudden onset of profuse watery stool followed by vomiting, rapid dehydration and muscular cramps?

Embryo - pollen biology, Embryo - Pollen Biology The suspensor cells o...

Embryo - Pollen Biology The suspensor cells of young embryos of Tropaeolum majus show that the activity of acid phosphatase increases from micropylar to chalazal pole. The con

Explain repressors , Gene repressor proteins which inhibit the trans...

Gene repressor proteins which inhibit the transcription of particular genes in eukaryotes also exist. They may act by binding either to control parts within the promoter region nea

Describe different animal groups, Describe different animal groups a) C...

Describe different animal groups a) Could  comprehensively  compare  and  contrast  the  behaviours  exhibited  by  social animals rather than describe different animal groups

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd