Q. No.Which of the following is not archaebacteria?
1.
Halophile
2.
Thermoalkalophiles
3.
Methanogens
4.
Thermoacidophiles
Hot spring hosts which kind of archaebacteria?
(1) Thermoacidophiles
(2) Thermoalkalophiles
(3) Thermophiles
(4) Thermoneutrophiles
Which organisms are responsible for the production of biogas?
| 1. | Archaebacteria | 2. | Eubactetia |
| 3. | Mycoplasma | 4. | Protists |
The characteristic feature of eubacteria is -
| 1. | Rigid cell wall |
| 2. | Flagellum in motile ones |
| 3. | Chlorophyll a |
| 4. | all of these |
Cyanobacteria do not possess which feature?
| 1. | Unicellular |
| 2. | Colonial or filamentous |
| 3. | Form blooms in polluted water bodies |
| 4. | Only marine algae |
The specialised cells to fix atmospheric nitrogen is called as
(1) Heterocyst
(2) Heterocyte
(3) Heterocoem
(4) Heterolog
Find the incorrect match.
1. Heterocyst-Archaebacteria
2. Gelatinous sheath- BGA
3. Methanogen- Biogas
4. Chlorella- protista
Which of the following is correct with respect to heterocyst
(1) Nostoc, Anabena
(2) Only Anabena
(3) Nostoc
(4) All eubactetia
Chemosynthetic autotrophic bacteria does not help in recycling of
(1) Nitrogen
(2) Iron
(3) Sulphur
(4) Mangnese
Chemosynthetic bacteria does not use which inorganic substrate?
| 1. | Nitrites | 2. | Nitrates |
| 3. | Chlorides | 4. | Both 1 and 2 |
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