Q1
Who proposed the five-kingdom system of biological classification in 1969?
Who proposed the five-kingdom system of biological classification in 1969?
(A)
Carl Linnaeus
(B)
R.H. Whittaker
(C)
Ernst Haeckel
(D)
Antonie van Leeuwenhoek
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Complete Syllabus Question Paper
Grade 11 : Biology - Biological Classification (Set 1)— Questions & Detailed Solutions
Q2
Unicellular prokaryotic organisms like bacteria and blue-green algae belong to which kingdom in Whittaker's system?
Unicellular prokaryotic organisms like bacteria and blue-green algae belong to which kingdom in Whittaker's system?
(A)
Monera
(B)
Protista
(C)
Fungi
(D)
Plantae
Q3
Which of the following organisms completely lacks a cell wall and is the smallest known living cell capable of surviving without oxygen?
Which of the following organisms completely lacks a cell wall and is the smallest known living cell capable of surviving without oxygen?
(A)
Nostoc
(B)
Mycoplasma
(C)
Rhizopus
(D)
Euglena
Q4
Archaebacteria that live in extremely salty environments are classified as:
Archaebacteria that live in extremely salty environments are classified as:
(A)
Methanogens
(B)
Thermoacidophiles
(C)
Halophiles
(D)
Cyanobacteria
Q5
Diatoms and golden algae (desmids) belong to which sub-group of kingdom Protista?
Diatoms and golden algae (desmids) belong to which sub-group of kingdom Protista?
(A)
Dinoflagellates
(B)
Chrysophytes
(C)
Euglenoids
(D)
Slime moulds
Q6
Red tides in oceans are primarily caused by the rapid multiplication of which dinoflagellate?
Red tides in oceans are primarily caused by the rapid multiplication of which dinoflagellate?
(A)
Gonyaulax
(B)
Paramecium
(C)
Amoeba
(D)
Trypanosoma
Q7
The structural cell wall component characteristic of true fungi is made up of:
The structural cell wall component characteristic of true fungi is made up of:
(A)
Cellulose
(B)
Peptidoglycan
(C)
Chitin
(D)
Pectin
Q8
Which infectious agent causing potato spindle tuber disease was discovered by T.O. Diener in 1971?
Which infectious agent causing potato spindle tuber disease was discovered by T.O. Diener in 1971?
(A)
Prion
(B)
Viroid
(C)
Virion
(D)
Lichen
Q9
Deuteromycetes are commonly designated as 'imperfect fungi' because:
Deuteromycetes are commonly designated as 'imperfect fungi' because:
(A)
They lack a cell wall
(B)
Only their asexual or vegetative phases are known
(C)
They do not form spores
(D)
They are non-parasitic
Q10
The symbiotic association between a fungus and the roots of higher plants is known as:
The symbiotic association between a fungus and the roots of higher plants is known as:
(A)
Lichen
(B)
Mycorrhiza
(C)
Haustorium
(D)
Epiphyte
Q11
Which group of protists possesses two flagella, one lying longitudinally and the other transversely in a furrow between wall plates?
Which group of protists possesses two flagella, one lying longitudinally and the other transversely in a furrow between wall plates?
(A)
Euglenoids
(B)
Dinoflagellates
(C)
Chrysophytes
(D)
Protozoans
Q12
In Whittaker's 5-kingdom system, Euglena is classified under which kingdom?
In Whittaker's 5-kingdom system, Euglena is classified under which kingdom?
(A)
Monera
(B)
Protista
(C)
Plantae
(D)
Fungi
Q13
In lichens, the fungal component performing absorption and structural support is called the:
In lichens, the fungal component performing absorption and structural support is called the:
(A)
Mycobiont
(B)
Phycobiont
(C)
Cyanobiont
(D)
Sporobiont
Q14
The classification system proposed by Linnaeus based mainly on vegetative characters or androecium structure is called an:
The classification system proposed by Linnaeus based mainly on vegetative characters or androecium structure is called an:
(A)
Natural classification system
(B)
Phylogenetic classification system
(C)
Artificial classification system
(D)
Numerical classification system
Q15
During unfavorable environmental conditions, bacteria primarily reproduce and survive by forming:
During unfavorable environmental conditions, bacteria primarily reproduce and survive by forming:
(A)
Conidia
(B)
Spores
(C)
Heterocysts
(D)
Gemmules
Q16
A non-cellular organism consisting of genetic material (DNA or RNA) enclosed inside a protein coat (capsid) is a:
A non-cellular organism consisting of genetic material (DNA or RNA) enclosed inside a protein coat (capsid) is a:
(A)
Viroid
(B)
Virus
(C)
Prion
(D)
Bacterium
Q17
Specialized cells called heterocysts, adapted specifically for atmospheric nitrogen fixation, are present in:
Specialized cells called heterocysts, adapted specifically for atmospheric nitrogen fixation, are present in:
(A)
Euglenoids
(B)
Cyanobacteria like Nostoc and Anabaena
(C)
Slime moulds
(D)
Archaebacteria
Q18
Abnormally folded infectious proteins that cause bovine spongiform encephalopathy (BSE) or mad cow disease are known as:
Abnormally folded infectious proteins that cause bovine spongiform encephalopathy (BSE) or mad cow disease are known as:
(A)
Viroids
(B)
Viruses
(C)
Prions
(D)
Bacteriophages
Q19
Bread mould (Rhizopus) and Mucor belong to which class of fungi characterized by aseptic, coenocytic mycelium?
Bread mould (Rhizopus) and Mucor belong to which class of fungi characterized by aseptic, coenocytic mycelium?
(A)
Phycomycetes
(B)
Ascomycetes
(C)
Basidiomycetes
(D)
Deuteromycetes
Q20
In Carl Woese's three-domain system of classification, how many domains are assigned strictly to prokaryotic organisms?
In Carl Woese's three-domain system of classification, how many domains are assigned strictly to prokaryotic organisms?
(A)
One
(B)
Two
(C)
Three
(D)
Four
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