Home

Biological Classification MCQ Solved Paper for SSC Stenographer

Thursday 9th of March 2023

Sharing is caring

1. Which of the following statement(s) is/are correct about ascomycetes ?
(i) Neurospora, which is used in biochemical and genetic work is a member of this class.
(ii) They are mostly multicellular, e.g., Yeast, or rarely unicellular, e.g., Penicillium.
(iii) They are saprophytic, decomposers, parasitic or coprophilous.
(iv) Some examples are Aspergillus, Claviceps and Neurospora.

A. Both (i) and (ii)
B. Only (ii)
C. (i), (iii) and (iv)
D. All of these
Answer : C
2. Which of the following statement is correct for both bluegreen algae and bacteria ?
A. Both show anaerobic respiration.
B. Both have chlorophyll pigment.
C. Both are devoid of true nucleus.
D. None of the above
Answer : C
3. Which of the following statement is correct for dinoflagellates flagella ?
A. A single flagellum lies in the transverse groove between the cell plates.
B. A single flagellum lies in the longitudinal groove between the cell plates.
C. Two flagella, one lies longitudinally and the other transversely in a furrow between the wall plates.
D. Flagella are absent.
Answer : C
4. Match the characters given in column I with their examples given in column II.
Column IColumn II
A. Long slender thread(i) Lichen like structures
B. Association of fungi with(ii) Mycorrhiza roots of higher plants
C. Parasitic fungi on mustard(iii) Neurospora
D. Fungi extensively used in(iv) Albugo biochemical and genetic work
E. An association in which(v) Hyphae algal component is called phycobiont

A. A-(v) B-(ii) C-(iv) D-(iii) E-(i)
B. A-(iii) B-(i) C-(iv) D-(ii) E-(v)
C. A-(ii) B-(i) C-(iii) D-(v) E-(iv)
D. A-(iii) B-(ii) C-(iv) D-(i) E-(v)
Answer : A
5. Which of the following kingdom does not have nuclear membrane ?
A. Protista
B. Fungi
C. Monera
D. Plantae
Answer : C
6. Choose the correct names of the different bacteria given below according to their shapes. 
img2

A. A – Cocci, B – Bacilli, C – Spirilla, D – Vibrio
B. A – Bacilli, B – Cocci, C – Spirilla, D – Vibrio
C. A – Spirilla, B – Bacilli, C – Cocci, D – Vibrio
D. A – Spirilla, B – Vibrio, C – Cocci, D – Bacilli
Answer : A
7. Which statement is not correct for viruses ?
A. Viruses are obligate parasites.
B. Viruses can multiply only when they are inside the living cells.
C. Viruses cannot pass through bacterial filters.
D. Viruses are made up of protein and DNA or RNA (never both DNA and RNA).
Answer : C
8. Protists are
A. single-celled eukaryotes.
B. multicellular eukaryotes.
C. single-celled prokaryotes.
D. single-celled akaryote.
Answer : A
9. The given figure shows the structure of filamentous blue green algae, Nostoc with a structure marked as X. Select the option which shows the correct identification of the X with its feature.
img5

A. Spores - Reproduction
B. Heterocysts - Nitrogen fixation
C. Pellicle - Recycling of nutrition
D. Mucilaginous sheath - Photosynthesis
Answer : B
10. Which group of fungi is commonly known as imperfect fungi ?
A. Phycomycetes
B. Ascomycetes
C. Basidiomycetes
D. Deuteromycetes
Answer : D
11. Which of the following statement is not correct for methanogens?
A. They are archaebacteria.
B. They live in marshy areas.
C. Methane is their preferred carbon source.
D. They are present in guts of several ruminant animals (cow, buffaloes) and produce biogas (CH4) from the dung of these animals.
Answer : C
12. An X reproduces in such a great numbers that the water may appearred, producing a red tides and kills large marine animals like Z. X belongs to Y. Identify X, Y and Z.
A. X - Gonyaulax ; Y - Dinoflagellates; Z - Fishes
B. X - Paramecium ; Y - Protozoa ; Z - Crocodiles
C. X - Trypanosoma ; Y - Protozoa ; Z - Frogs
D. X - Plasmodium ; Y - Euglenoids ; Z - Oysters
Answer : A
13. Read the given statements and answer the question.
(i) It includes unicellular as well as multicellular fungi.
(ii) In multicellular forms hyphae are branched and septate.
(iii) Conidiophore produces conidia (spores) exogenously in chain.
(iv) Sexual spores are ascospores produced endogenously in chain.
(v) Fruiting body is called ascocarp.
Identify the correct class of fungi which have all the given characteristics.

A. Phycomycetes
B. Sac fungi
C. Club fungi
D. Fungi imperfecti
Answer : B
14. Identify the following figures A, B and C. 
img3

A. A – Euglena, B – Paramecium, C – Agaricus
B. A – Euglena, B – Planaria, C – Agaricus
C. A – Planaria, B – Paramecium, C – Agaricus
D. A – Euglena, B – Paramecium, C – Aspergillus
Answer : A
15. The symbiotic association of fungi and algae is called
A. lichen
B. mycorrhiza
C. rhizome
D. endomycorrhiza
Answer : A
16. The subunit of capsid is called
A. core
B. nucleotide
C. amino acid
D. capsomere
Answer : D
17. Match column I (containing fungus name) with column II (common name) and choose the correct options.
Column-IColumn-II
(Fungus name)(Commonly called)
A. PucciniaI. Yeast
B. UstilagoII. Mushroom
C. AgaricusIII. Smut fungus
D. SaccharomycesIV. Rust fungus

A. A I, B II, C III, D IV
B. A II, B III, C IV, D I
C. A III, B IV, C I, D II
D. A IV, B III, C II, D I
Answer : D
18. Match the terms given in column-I with their examples given in column-II and choose the correct option
Column-IColumn-II
(Terms)(Examples)
A. AscusI. Spirulina
B. BasidiumII. Penicillium
C. ProtistaIII. Agaricus
D. CyanobacteriaIV. Euglena
E. AnimaliaV. Sponges

A. A II, B III, C IV, D V, E I
B. A I, B II, C III, D V, E IV
C. A II, B V, C III, D I, E IV
D. A II, B III, C IV, D I, E V
Answer : D
19. The given figure shows some labelled structure as A, B, C and D. In which structure the protein coat that encloses the nucleic acid is present? 
img6

A. A
B. B
C. C sheath
D. D tail fibres
Answer : A
20. Bacteria lack alternation of generation because there is
A. neither syngamy nor reduction division.
B. no distinct chromosomes.
C. no conjugation.
D. no exchange of genetic material.
Answer : A
21. Which scientist classify plants into trees, shrubs and herbs & animals into two groups having red blood cells and without red blood cells?
A. Aristotle
B. R. H. Whittaker
C. D. J. Ivanowsky
D. W. M. Stanley
Answer : A
22. Match the class of fungi given in column I with their examples given in column II and choose the correct option
Column-IColumn-II
(Class of fungi)(Examples)
A. AscomycetesI. Rhizopus
B. BasidiomycetesII. Penicillium
C. DeuteromycetesIII. Ustilago
D. PhycomycetesIV. Alternaria

A. A IV, B III, C I, D II
B. A II, B III, C IV, D I
C. A IV, B I, C II, D III
D. A III, B IV, C II, D I
Answer : B
23. Why food can be kept for a longer time in cold house than in normal conditions ? Because,
A. insect cannot enter.
B. bacterial multiplication stops.
C. bacterial multiplication is reduced.
D. there is plasmolysis at low temperature.
Answer : C
24. Match the class of fungi given in column-I with their common name given in column-II and select the correct option.
Column-IColumn-II
(Class of fungi)(Common name)
A. PhycomycetesI. Sac fungi
B. AscomycetesII. Algal fungi
C. BasidiomycetesIII. Fungi imperfecti
D. DeuteromycetesIV. Club fungi

A. A II, B I, C IV, D III
B. A II, B IV, C I, D III
C. A IV, B I, C II, D III
D. A IV, B III, C II, D I
Answer : A
25. Which of the following is smallest living cell and can live without oxygen ?
A. Mycoplasma
B. Mycorrhiza
C. Euglena
D. Trypanosoma
Answer : A
26. Which of the following pairs comes under the group chrysophytes ?
A. Diatoms and Euglena
B. Euglena and Trypanosoma
C. Diatoms and Desmids
D. Gonyaulax and Desmids
Answer : C
27. Bacteria are found to be primitive organisms because they
A. are small, microscopic which are not seen with naked eye.
B. cause serious diseases to human being, domesticated animals and crop plants.
C. produce endospores which are very resistant to adverse conditions.
D. possess incipient nucleus and show amitotic division.
Answer : D
28. Match column I (Kingdom) with column II (Class) and select the correct options
Column-IColumn-II
(Kingdom)(Class)
A. PlantaeI. Archaebacteria
B. FungiII. Euglenoids
C. ProtistaIII. Phycomycetes
D. MoneraIV. Algae

A. A IV, B III, C II, D I
B. A I, B II, C III, D IV
C. A III, B IV, C II, D I
D. A IV, B II, C III, D I
Answer : A
29. Which of the following is an example of amoeboid protozoans ?
A. Trypanosoma
B. Paramecium
C. Gonyaulax
D. Entamoeba
Answer : D
30. Assume that two normal hyphal cells of different fungal mating types unite. After a period of time, the cell between these cells will dissolve producing a
A. mycelium
B. fruiting body
C. zygote
D. dikaryotic cell, which is also heterokaryotic
Answer : D
31. Read the following statements and answer the question given below
(i) They are saprophytic protists.
(ii) Under suitable conditions, they form an aggregation (called plasmodium) which may grow and spread over several feet.
(iii) During unfavourable conditions, the plasmodium differentiates and forms fruiting bodies bearing pores at their tips.
Which of the following class of protists is being described by the above statements ?

A. Euglenoids
B. Dinoflagellates
C. Slime moulds
D. Protozoans
Answer : C
32. Which of the following is used extensively in biochemical and genetic work ?
A. Agaricus
B. Alternaria
C. Neurospora
D. Mucor
Answer : C
33. A virus can be considered a living organism because it
A. responds to touch stimulus
B. respires
C. reproduces (inside the host)
D. can cause disease
Answer : C
34. Which of the following statement is incorrect ?
A. TMV has a double-stranded RNA molecule.
B. Most plant viruses are RNA viruses.
C. The bacteriophage has a double-stranded DNA molecule.
D. Most animal viruses are DNA viruses.
Answer : A
35. Fungi show asexual reproduction by all of the following kinds of spores except
A. conidia
B. oospores
C. sporangiospores
D. zoospores
Answer : B
36. Bacteria were regarded to be plants because
A. some of them are green in colour.
B. they are present every where.
C. some of them cannot move.
D. they have a rigid cell wall.
Answer : D
37. Read the following statements and answer the question.
(i) Some members are saprophytes or parasites while a large number of them are decomposers of litter and help in mineral cycling.
(ii) They reproduce only by asexual spores known as conidia.
(iii) Mycelium is septate and branched.
(iv) Alternaria, Colletotrichum and Trichoderma are examples of this class.
Which of the following class of fungi is being described by the above statements ?

A. Phycomycetes
B. Deuteromycetes
C. Basidiomycetes
D. Ascomycetes
Answer : B
38. Dikaryon formation is the characteristic feature of
A. ascomycetes and basidiomycetes.
B. phycomycetes and basidiomycetes.
C. ascomycetes and phycomycetes.
D. phycomycetes and zygomycetes.
Answer : A
39. The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as
A. cyanobacteria
B. archaebacteria
C. chemosynthetic autotrophs
D. heterotrophic bacteria
Answer : D
40. The genetic material of virus includes
A. only RNA.
B. only DNA.
C. RNA and DNA both
D. RNA or DNA i.e. one nucleic acid in a virus.
Answer : D
41. The given characters are seen in which of the following group?
(i) Unicellular, colonial, filamentous, marine or terrestrial forms.
(ii) The colonies are surrounded by a gelatinous sheath.
(iii) Some can fix atmospheric nitrogen in specialized cells called heterocysts.
(iv) They often form blooms in water bodies.

A. Archaebacteria
B. Cyanobacteria
C. Chrysophytes
D. Dinoflagellates
Answer : B
42. Match column-I (Characters/feature) with column-II (examples) and choose the correct option.
Column-IColumn-II
(Characters/features)(Examples)
A. Red dinoflagellatesI. Rhizopus
B. Unicellular fungi used toII. Gonyaulax make bread and beer
C. Source of antibioticsIII. Yeast
D. Bread mouldIV. Penicillium

A. A III; B II; C I; D IV
B. A II; B III; C I; D IV
C. A II; B III; C IV; D I
D. A II; B IV; C III; D I
Answer : C
43. Which one single organism or the pair of organisms is correctly assigned to its taxonomic group?
A. Paramecium and Plasmodium belong to the same kingdom as that of Penicillium.
B. Lichen is a composite organism formed from the symbiotic association of an alga and a protozoan.
C. Yeast used in making bread and beer is a fungus.
D. Nostoc and Anabaena are examples of protista.
Answer : C
44. Which of the following pigment is present in cyanobacteria?
A. Chlorophyll a
B. Chlorophyll b
C. Chlorophyll c
D. Chlorophyll d
Answer : A
45. Which one of the following statement is correct for archaea?
A. Archaea resemble eukaryotes in all respects.
B. Archaea have some novel features that are absent in other prokaryotes and eukaryotes.
C. Archaea completely differ from both prokaryotes and eukaryotes.
D. Archaea completely differ from prokaryotes.
Answer : B
46. Bladderwort and Venus fly trap are examples of
A. insectivorous plants
B. parasitic plants
C. N2 rich plants
D. aquatic plants
Answer : A
47. Which of the following pair is not correctly matched ?
A. Anabaena Cyanobacteria
B. Amoeba Protozoa
C. Gonyaulax Dinoflagellates
D. Albugo Chrysophytes
Answer : D
48. The bacteria which oxidize various inorganic substances and use the released energy for their ATP production are called _______________.
A. Archaebacteria
B. Heterotrophic bacteria
C. Photosynthetic autotrophic bacteria
D. Chemosynthetic autotrophic bacteria
Answer : D
49. Consider the following statements with respect to characteristic features of the kingdom.
(i) In animalia, the mode of nutrition is autotrophic.
(ii) In monera, the nuclear membrane is present.
(iii) In protista,the cell type is prokaryotic.
(iv) In plantae, the cell wall is present.
Of the above statements, which one is correct ?

A. (i) only
B. (ii) only
C. (iii) only
D. (iv) only
Answer : D
50. Lichens indicate SO2 pollution because they
A. show association between algae and fungi.
B. grow faster than others.
C. are sensitive to SO2.
D. flourish in SO2 rich environment.
Answer : C

Sharing is caring