Which of the following statement is/are correct with respect to Bacteria?
(1) Bacteria are the sole members of the Kingdom Monera.
(2) Bacteria occur almost everywhere.
(3) Bacteria are the most abundant microorganisms.
(4) 80S type of ribosome are present in bacteria.
(1) Bacteria are the sole members of the Kingdom Monera.
(2) Bacteria occur almost everywhere.
(3) Bacteria are the most abundant microorganisms.
(4) 80S type of ribosome are present in bacteria.
Important Questions on Biological Classification & Kingdom Plantae
By observing following figure find correct match. With example.
Examples
(i) Vibrio
(ii) Spirillum
(iii) Bacillus
(iv) Micrococcus roseus & Diplococcus pneumoniae
(1) Archaebacteria differ from other bacteria in having a different cell wall structure.
(2) feature of cell wall is responsible for their survival in extreme conditions.
(3) Methanogens are present in the guts of several ruminant animals such as cow & buffalo.
(4) These are oldest of the living fossils.
(5) Peptidoglycan & muramic acid are present in cell wall
(1) Mycoplasma are the smallest living cells known.
(2) These can survive without oxygen.
(3) The Mycoplasma are organisms that completely lack a cell wall.
(4) Mycoplasma cannot pass through bacteria proof filters.
The Blue-green algae, also referred to as _________(i)_________ have chlorophyll similar to green plants. Some of these organisms can fix atmospheric nitrogen in specialised cells called _________(ii)_________, e.g. Nostoc & Anabaena. _________(iii)_________ bacteria oxidise various inorganic substances such as nitrates, nitrites and ammonia & use the released energy for their ATP production.
In the above question, (i), (ii) & (iii) are respectively:
Match column I with Column II
| column I | column II | ||
| (i) | presence of branched chain lipids in cell membrane | (a) | Thermo acidophiles |
| (ii) | Homopolar bond in protein | (b) | Methanogens |
| (iii) | Found in marshy habitats, swamps, ruminants, sewage treatment plants | (c) | Halophiles |
| Kingdom | Organism | |
| (i) | Monera | Archaebacteria, Eubacteria, BGA, Euglenoids |
| (ii) | Protista | Diatoms, Dinoflagellates, Euglenoids |
| (iii) | Fungi | Albugo, Mucor, Penicillium, Slime-moulds |
Which one is/are correct match
Gram negative
Obligate anaerobes
Found in marshy habitats
Cell wall possessess protein
