1.2 Eubacteria (True Bacteria) Flashcards
There are thousands of different Eubacteria or ‘true bacteria’.
T/F
True
Eubacteria are characterised by the presence of a rigid cell wall, and if motile, a flagellum.
T/F
True
Photosynthetic Eubacteria have ____ (chl-a/chl-b).
Chlorophyll a (similar to green plants)
Example of Photosynthetic Eubacteria.
Cyanobacteria (blue-green algae)
Select the feature of Blue Green Algae:
- Unicellular or Multicellular
- Colonial or Filamentous
- Freshwater, Marine or Terrestrial
I. Unicellular
II. Colonial or filamentous
III. Freshwater, marine, or terrestrial
Cyanobacteria are generally surrounded by ______ sheath.
Gelatinous or Mucilagenous sheath
Cyanobacteria often form _____ in polluted water bodies.
Blooms
Some Cyanobacteria can fix atmospheric nitrogen in specialized cells called ______.
Examples of these cyanobacteria.
Heterocysts;
E.g., Filamentous BGA (Nostoc & Anabaena)
Chemosynthetic Eubacteria oxidize inorganic substances such as ______ and use the released energy for ATP production.
Nitrates, Nitrites & Ammonia
Chemosynthetic Eubacteria help in recycling nutrients like:
I. Nitrogen
II. Phosphorus
III. Iron
IV. Sulfur
Heterotrophs Eubacteria are the most abundant in nature.
T/F
True
Some of the Heterotroph Eubacteria are important decomposers.
T/F
False,
The majority of Heterotroph Eubacteria are important decomposers.
Many Heterotroph Eubacteria have a significant impact on human affairs.
T/F
True
Heterotroph Eubacteria help make curd from milk, production of antibiotics, fix nitrogen in legume roots, etc.
T/F
True
Some of the Heterotrophic Eubacteria are pathogens that cause damage to human beings, crops, farm animals and pets.
T/F
True
