Tag: Botany 12 Chapter 2
Diatoms Diatoms are golden brown photosynthetic protists and are called Chrysophytes (including both diatoms and desmids). They are both and terrestrial. Some are marine. They support much of marine …
KINGDOM : PROTISTA All unicellular eukaryotes, irrespective of their mode of nutrition, are included in the kingdom Protista in Whittaker’s system. The term protista was coined by Ernst Haeckel. …
EXERCISE Archaebacteria do not show Peptidoglycan and D- amino acids in cell wall Introns in DNA Branched chain lipids in cell membrane Ribosomal proteins with highly acidic nature Methanogens …
Actinomycetes (Ray Fungi) 1) These are branched, filamentous bacteria and are considered as intermediate form between bacteria and fungi, e.g., Nocardia, Mycobacterium, Corynebacterium, Frankia, Streptomyces. 2) These filaments from …
Archaebacteria They are believed to have evolved immediately after the origin of life on earth, as even now these are living under extremely adverse condition such as extreme salty …
Mycoplasma 1. Nocard and E.R. Roux (1898)- two French Scientists, discovered these organisms from pleural fluid of cattles suffering from pleuropneumonia. These are pleomorphic and were called PPLO (Pleuropneumonia …
Cyanobacteria Cyanobacteria are Gram negative photosynthetic prokaryotes, being the most primitive organisms to have oxygenic photosynthesis. They added oxygen to the atmosphere, which is indispensible for the existence of …
Economic importance of Bacteria Bacteria play significant role in day to day activates of human beings. 1.Beneficial activities a) Role in agriculture i) Decay and decomposition of organic matter …
