Q1
Who proposed the Five Kingdom system of biological classification in 1969?
Who proposed the Five Kingdom system of biological classification in 1969?
(A)
Ernst Haeckel
(B)
R.H. Whittaker
(C)
Carolus Linnaeus
(D)
Carl Woese
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Complete Syllabus Question Paper
Grade 11 : Biology - Biological Classification (Set 2)— Questions & Detailed Solutions
Q2
According to the Five Kingdom classification, all unicellular eukaryotic organisms are placed in which kingdom?
According to the Five Kingdom classification, all unicellular eukaryotic organisms are placed in which kingdom?
(A)
Protista
(B)
Monera
(C)
Fungi
(D)
Plantae
Q3
Which organisms are known as the "chief producers" in the ocean?
Which organisms are known as the "chief producers" in the ocean?
(A)
Dinoflagellates
(B)
Cyanobacteria
(C)
Diatoms
(D)
Euglenoids
Q4
Archaebacteria capable of surviving in extreme salty conditions are termed as:
Archaebacteria capable of surviving in extreme salty conditions are termed as:
(A)
Thermoacidophiles
(B)
Methanogens
(C)
Halophiles
(D)
Acidophiles
Q5
The cell walls of true fungi are predominantly composed of which structural polysaccharide?
The cell walls of true fungi are predominantly composed of which structural polysaccharide?
(A)
Cellulose
(B)
Peptidoglycan
(C)
Chitin
(D)
Glycogen
Q6
Archaebacteria differ from Eubacteria mainly in having a different:
Archaebacteria differ from Eubacteria mainly in having a different:
(A)
Presence of nuclear membrane
(B)
Cell wall structure
(C)
Mode of reproduction
(D)
Type of ribosomes
Q7
Which organisms are the smallest living cells known, completely lack a cell wall, and can survive without oxygen?
Which organisms are the smallest living cells known, completely lack a cell wall, and can survive without oxygen?
(A)
Mycoplasma
(B)
Euglena
(C)
Paramecium
(D)
Nostoc
Q8
Methanogens are present in the gut of several ruminant animals and are responsible for producing:
Methanogens are present in the gut of several ruminant animals and are responsible for producing:
(A)
Carbon monoxide
(B)
Nitrogen dioxide
(C)
Methane gas
(D)
Hydrogen sulfide
Q9
Which kingdom in the Five Kingdom classification lacks a nuclear membrane in all its constituent organisms?
Which kingdom in the Five Kingdom classification lacks a nuclear membrane in all its constituent organisms?
(A)
Monera
(B)
Protista
(C)
Fungi
(D)
Animalia
Q10
The Two-Kingdom classification system proposed by Linnaeus divided all living organisms into:
The Two-Kingdom classification system proposed by Linnaeus divided all living organisms into:
(A)
Monera and Protista
(B)
Plantae and Animalia
(C)
Fungi and Plantae
(D)
Prokaryotes and Eukaryotes
Q11
Protozoans like Amoeba, Paramecium, and Trypanosoma belong to which Whittaker kingdom?
Protozoans like Amoeba, Paramecium, and Trypanosoma belong to which Whittaker kingdom?
(A)
Monera
(B)
Fungi
(C)
Animalia
(D)
Protista
Q12
Lichens are symbiotic, mutually useful associations between:
Lichens are symbiotic, mutually useful associations between:
(A)
Algae and Fungi
(B)
Fungi and Roots of higher plants
(C)
Algae and Bacteria
(D)
Bacteria and Protozoa
Q13
An infectious pathogen smaller than a virus, consisting of free naked RNA without a protein coat, is a:
An infectious pathogen smaller than a virus, consisting of free naked RNA without a protein coat, is a:
(A)
Prion
(B)
Bacteriophage
(C)
Viroid
(D)
Plasmid
Q14
Who demonstrated that infected tobacco plant sap could transmit infection to healthy plants and coined the phrase *Contagium vivum fluidum*?
Who demonstrated that infected tobacco plant sap could transmit infection to healthy plants and coined the phrase *Contagium vivum fluidum*?
(A)
Dmitri Ivanowsky
(B)
M.W. Beijerinck
(C)
W.M. Stanley
(D)
Louis Pasteur
Q15
Rapid multiplication of which dinoflagellate causes marine waters to appear red, leading to 'Red Tides'?
Rapid multiplication of which dinoflagellate causes marine waters to appear red, leading to 'Red Tides'?
(A)
Gonyaulax
(B)
Euglena
(C)
Paramecium
(D)
Rhizopus
Q16
Instead of a cell wall, euglenoids possess a protein-rich flexible outer layer called the:
Instead of a cell wall, euglenoids possess a protein-rich flexible outer layer called the:
(A)
Capsule
(B)
Pellicle
(C)
Pseudopodium
(D)
Cell membrane
Q17
Abnormally folded, infectious proteins that transmit neurodegenerative diseases such as Mad Cow disease are called:
Abnormally folded, infectious proteins that transmit neurodegenerative diseases such as Mad Cow disease are called:
(A)
Viroids
(B)
Virions
(C)
Prions
(D)
Bacteriophages
Q18
Under favorable conditions, saprophytic slime moulds aggregate into a multinucleate mass known as:
Under favorable conditions, saprophytic slime moulds aggregate into a multinucleate mass known as:
(A)
Mycelium
(B)
Plasmodium
(C)
Pseudopodium
(D)
Protonema
Q19
Deuteromycetes are commonly referred to as 'imperfect fungi' because:
Deuteromycetes are commonly referred to as 'imperfect fungi' because:
(A)
They lack a cell wall
(B)
Only their asexual or vegetative stages are known
(C)
They are strictly unicellular
(D)
They reproduce only by sexual spores
Q20
Heterocysts are specialized differentiated cells present in cyanobacteria like *Nostoc* that function in:
Heterocysts are specialized differentiated cells present in cyanobacteria like *Nostoc* that function in:
(A)
Photosynthesis
(B)
Carbon fixation
(C)
Atmospheric nitrogen fixation
(D)
Sexual reproduction
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