Comma shaped bacteria are
(1) coccus
(2) Vibrio
(3) Bacilli
(4) Spirillum
Difficulty Level:
Which of the following is incorrect about bacteria?
(1) Simple structure
(2) Not so extensive metabolic activity
(3) Complex behaviour
(4) Can be autotrophic
Difficulty Level:
Which of the following is not archaebacteria?
(1) Halophile
(2) Thermoalkalophiles
(3) Methanogens
(4) Thermoacidophiles
Difficulty Level:
Hot spring hosts which kind of archaebacteria?
(1) Thermoacidophiles
(2) Thermoalkalophiles
(3) Thermophiles
(4) Thermoneutrophiles
Difficulty Level:
The characteristic feature of eubacteria is -
(1) Rigid cell wall
(2) Flagellum in motile ones
(3) Chlorophyll a
(4) all of these
Difficulty Level:
Cyanobacteria do not possess which feature?
(1) Unicellular
(2) Colonial or filamentous
(3) Form blooms in polluted water bodies
(4) Only marine algae
Difficulty Level:
The specialised cells to fix atmospheric nitrogen is called as
(1) Heterocyst
(2) Heterocyte
(3) Heterocoem
(4) Heterolog
Difficulty Level:
Find the incorrect match.
(1) Heterocyst-Archaebacteria
(2) Gelatinous sheath- BGA
(3) Methanogen- Biogas
(4) Chlorella- protista
Difficulty Level:
Chemosynthetic autotrophic bacteria does not help in recycling of
(1) Nitrogen
(2) Iron
(3) Sulphur
(4) Mangnese
Difficulty Level:
Chemosynthetic bacteria does not use which inorganic substrate?
(1) Nitrites
(2) Nitrates
(3) Chlorides
(4) Both a and b
Difficulty Level: