Biological Classification (Class - XI)
Biological Classification (Class - XI)
Questions
______ are associated with defense in protozoans.
- Nematocysts
- Statocysts
- Trichocysts
- Otocysts
To which of the following categories does methanogens belong?
- Archaebacteria
- Cyanobacteria
- Phototropic bacteria
- Putrefaction bacteria
Which of the following is not included in the five kingdom classification of R. H. Whittaker?
- Monera
- Virus
- Fungi
- Protista
Which of the following are the locomotory organelles in protozoa?
- Setae
- Cilia
- Flagella
- Pseudopodia
A bacterium with numerous flagella all around is
- monotrichous
- lophotrichous
- amphitrichous
- peritrichous
From which of the following bacteria is the hallucinogenic drug, LSD obtained?
- Claviceps purpurea
- Saccharomyces cerevisiae
- Penicillium notatum
- Rhizopus nigrican
Cell wall is absent in
- mycoplasma
- bacillus substilis
- coccus
- streptococcus
Which of the following is an obligate aerobe?
- Clostridium botulinum
- Rhodopseudomonas
- Bacillus subtilis
- Halophile
Acellular protists are
- monocystis
- plasmodium
- Both (1) and (2)
- None of these
The five kingdom classification of living organisms was proposed by
- Engler and Prantl
- Whittaker
- Linnaeus
- Bentham and Hooker
Hard covering of amoeba is known as
- shell
- cover
- cyst
- All of the above
In the five kingdom system of classification, which of the following single systems can include blue-green algae, nitrogen-fixing bacteria and methanogenic archaebacteria?
- Monera
- Fungi
- Protista
- Plantae
Which of the following statements are correct with reference to the action of bacteria?
A. Ammonifying bacteria release ammonia in the soil by decay and putrefaction.
B. Nitrifying bacteria convert ammonia to nitrates directly.
C. Nitrogen fixing bacteria can be symbiotic or non-symbiotic.
D. Acetobacter aceti helps in the production of acetone.
E. Mycoderma aceti converts sugar solution to acetic acid.
- A, C and E
- Only A and C
- B, C and D
- Only D and E
Directions: The following question has four choices out of which only one is correct.
Multinucleated and multiciliated asexual spores of Vaucheria are called
- zoospores
- aplanospores
- meiospores
- synzoospore
Agrobacterium rhizogenes consists of
- F factor
- Col factor
- Ti factor
- Ri factor
Two kingdoms constantly figured in all biological classifications are
- Plantae and Animalia
- Monera and Animalia
- Protista and Animalia
- Protista and Plantae
Which of the following pairs of fungi belongs to basidiomycetes?
- Penicillium and Sachharomyces
- Alternaria and Mucor
- Penicillium and Agaricus
- Agaricus and Calvatia
Which of the following organisms completely lack cell wall?
- Cyanobacteria
- Heterocysts
- Eubacteria
- Mycoplasmas
Who included different kingdom ‘Monera’ for the first time in his biological classification?
- Earnst Haeckel
- R. H. Whittaker
- Copeland
- Linnaeus
- Woese et al.
Which of the following statements is correct about blue-green algae?
- They are photosynthetic autotrophic bacteria.
- They are chemosynthetic autotrophic bacteria.
- They are heterotrophic bacteria.
- They are considered as archaebacteria.