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Biological Classification Monera Protista Fungi Slime Moulds Viruses MCQ
Quiz 3
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Q.1
After Karyogamy followed by meiosis, spores are produced exogenously in:
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a) Agaricus
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b) Alternaria.
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c) Saccharomyces
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d) Neurospora
Explanation
Karyogamy is the final step in the process of fusing together two haploid eukaryotic cells, and refers specifically to the fusion of the two nuclei Exogenous spore formation: It is the type of spore formation taking place externally or exogenously in fungus. Spores thus formed are known as exogenous spores or conidia. In basidiomycetes, karyogamy and meiosis takes place in basidium and produces four spores exogenously. These spores are called as basidiospores. For example, Agaricus. Neurospora, Saccharomyces and Alternaria produce spores endogenously. Answer:(a)
Q.2
elect the sexual spores in fungi from the list given below: (i) Conidiospores. (ii) Ascospores. (iii) Oospores. (iv) Sporangiospores. (v) Zygospores. (vi) Basidiospores. (vii) Zoospores. (viii) Aplanospores.
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a) (ii), (iii), (v), (vi)
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b) (ii), (iv), (v), (vi), (vii).
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c) (i), (ii), (iv), (v), (viii).
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d) (i), (iii), (iv), (v), (vii).
Explanation
Answer:(a)
Q.3
Which of the following is incorrect about Paramoecium?
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a) It shows transverse binary fission.
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b) It possess two nuclei, a micronucleus for vegetative purpose and a macronucleus for reproductive purpose.
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c) They show nuclear dimorphism.
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d) It is also known as slipper animalcule.
Explanation
The diagram represents Paramoecium. It is a ciliated protozoan which is an animal protistan. It undergoes transverse binary fission. It possess two nuclei, a macronucleus for vegetative purposes and a micronucleus for reproductive purposes. This phenomenon is called nuclear dimorphism. The coordinated movement of cilia helps in fast locomotion in Paramoecium. It is commonly called as ‘Slipper animalcule’. Answer:(b)
Q.4
Locomotory structure in Sporozoans:
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a) Pseudopodia.
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b) Cilia
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c) Flagella
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d) No locomotory structure.
Explanation
Answer:(d)
Q.5
The most abundant group of microorganisms:
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a) Algae
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b) Viruses
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c) Bacteria
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d) Protista.
Explanation
Answer:(c)
Q.6
Bacteria are grouped under four categories based on their shape. Refer to the given figure and identify the correct option:
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a) 1-Vibrio, 2-Cocci, 3-Bacilli, 4-Spirilla.
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b) 1-Cocci, 2-Bacilli, 3-Spirilla, 4-Vibrio.
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c) 1-Bacilli, 2-Spirilla, 3-Vibrio, 4-Cocci.
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d) 1-Spirilla, 2-Vibrio, 3-Cocci, 4-Bacilli.
Explanation
Answer:(b)
Q.7
How many of the following statements are true regarding flagellation in bacteria: (i) Monotrichous – A single flagella at one end of bacterial cell. (ii) Amphitrichous – Single flagella at both the ends of bacterial cell. (iii) Cephalotrichous – Group of flagella at one end of bacterial cell. (iv) Lophotrichous – Group of flagella at both the ends of bacterial cell. (v) Petritrichous – Flagella present all around the body of bacterial cell. (vi) Atrichous – No flagella present.
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a) 5
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b) 6
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c) 4
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d) 3
Explanation
Answer:(b)
Q.8
The membrane stabilizing molecule present in the cell wall of bacteria.
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a) Ergo sterol.
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b) Stigma Sterol
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c) Chitin
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d) Hopanoids.
Explanation
Answer:(d)
Q.9
Fill in the box with suitable answers and choose the correct option: Five kingdom
Characters
Monera
Protista
Fungi
Plantae
Animalia
Cell type
1
Eukaryotic
2
Eukaryotic
Eukaryotic
Cell wall
Non cellulosic
Present in some
3
Present (Cellulose)
4
Nuclear membrane
5
Present
Present
6
Present
Body organisation
Cellular
7
loose tissue
Tissue/organ
Tissue/organ/ organ system
Mode of nutrition
8
9
10
Autotrophic
Heterotrophic
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a) 1-Prokaryotic, 2-Eukaryotic, 3-Present (without cellulose), 4-Absent, 5-Absent, 6-Present, 7-Cellular, 8-Autotrophic, 9- Autotrophic, 10-Heterotrophic.
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b) 1-Prokaryotic, 2-Eukaryotic, 3- Present (with cellulose), 4-Present, 5-Absent, 6-Present, 7-Multicellular, 8-Autotrophic, 9-Autotrophic, 10-Heterotrophic.
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c) 1-Prokaryotic, 2-Eukaryotic, 3- Present (with cellulose), 4-Absent, 5-Present, 6-Present, 7-Multicellular, 8-Autotrophic, 9-Heterotrophic, 10-Autotrophic.
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d) 1-Prokaryotic, 2-Eukaryotic, 3-Present (without cellulose), 4-Absent, 5-Present, 6-Present, 7-Cellular, 8-Autotrophic, 9-Heterotrophic, 10-Autotrophic.
Explanation
Characters
Monera
Protista
Fungi
Plantae
Animalia
Cell type
Prokaryotic
Eukaryotic
Eukaryotic
Eukaryotic
Eukaryotic
Cell wall
Non cellulosic
Present in some
Present (without cellulose)
Present (Cellulose)
Absent
Nuclear membrane
Absent
Present
Present
Present
Present
Body organisation
Cellular
7
loose tissue
Tissue/organ
Tissue/organ/ organ system
Mode of nutrition
Autotrophic
Autotrophic
Heterotrophic
Autotrophic
Heterotrophic
Answer:(a)
Q.10
Connecting link between bacteria and fungi:
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a) Spirochaete.
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b) Actinomycetes.
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c) Rickettsia.
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d) Enterobacteria
Explanation
Answer:(b)
Q.11
Filamentous body of Nostoc, Anabaena and Oscillatoria is called:
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a) Trichome
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b) Pellicle
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c) Hormogonia
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d) Fragment
Explanation
Answer:(a)
Q.12
What is the mode of arrangement of flagella in cyanobacteria?
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a) Monotrichous
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b) Lophotrichous.
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c) Petritrichous.
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d) Atrichous
Explanation
Answer:(d)
Q.13
How many of the following are true: (i) Albugo candida – White rust of mustard. (ii) Phytophthora infestans – Late blight of potato. (iii) Pythium debaryanum – Damping off of seedlings. (iv) Rhizopus – Spoilage of bread. (v) Puccinia graminis – Black rust of wheat. (vi)Ustilago tritici – Loose smut of wheat.
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a) 4
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b) 5
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c) 6
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d) 3
Explanation
Answer:(c)
Q.14
Flagella of prokaryotic and eukaryotic cells differ in:
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a) Type of movement and placement in cell.
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b) Location in cell and mode of functioning.
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c) Microtubular organisation and type of movement.
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d) Macrotubular organisation and function.
Explanation
Answer:(c)
Q.15
In some virus, RNA is present instead of DNA indicating that:
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a) Their nucleic acid must combine with lost DNA before replication.
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b) They cannot replicate
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c) RNA can act to transfer heredity.
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d) There is no hereditary information.
Explanation
Answer:(c)
Q.16
atch the following:
E.coli
a. Bacteriophages
Cyanobacteria
b. Coliophages
Fungi
c. Cyanophages
Bacteria
d. Mycophages.
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a) 1→a ; 2 →b ; 3→c ; 4→d
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b) 1→b ; 2 →c ; 3→d ; 4→a
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c) 1→c ; 2 →d ; 3→a ; 4→b
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d) 1→a ; 2 →b ; 3→d ; 4→a
Explanation
Cyanophages are viruses that infect cyanobacteria A bacteriophage, also known informally as a phage, is a virus that infects and replicates within bacteria and archaea. A coliphage is a type of bacteriophage that infects Escherichia coli. Mycophage is a virus, the host of which is a fungus Answer:(b)
Q.17
Which one of the following statements regarding viruses is correct?
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a) Viruses possess their own metabolic system.
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b) Viruses contain either DNA or RNA.
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c) Viruses are facultative parasites.
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d) Viruses are readily killed by antibiotics.
Explanation
Answer:(b)
Q.18
ndospore formation is not considered as a method of reproduction because:
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a) The individual formed from it does not exist.
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b) Individuals cannot be formed from endospores.
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c) Only one endospore in a cell, so number of individuals does not increase.
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d) Endospore formation is not frequent.
Explanation
Answer:(c)
Q.19
Fungi usually store food materials in the form of:
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a) Starch
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b) Glycogen and oil
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c) Lipid
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d) Protein.
Explanation
Answer:(b)
Q.20
Consider the following statements regarding characters of Archaebacteria share with Eukaryotes: (i) The cell wall does not contain peptidoglycan. (ii) DNA associated with histones. (iii) Translation initiated with formylated methionine. (iv) RNA polymerase similar to eukaryotic RNA polymerase II. (v) Similarity in ATPase. (vi) Similar DNA replication and repair. How many of the above characters Archaebacteria share with Eukaryotes.
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a) 3
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b) 4
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c) 5
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d) 6
Explanation
Answer:(c)
Q.21
During Gram’s staining which is incorrect ?
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a) All bacteria take crystal violet stain
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b) Gram +ve bacteria take crystal violet stain
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c) Only Gram –ve bacteria take crystal violet stain
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d) Gram –ve bacteria lose this stain after alcohol treatment
Explanation
Answer:(d)
Q.22
Which of the following statements regarding Euglenoids is not true?
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a) They have cell wall
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b) They have two flagella, a short and along one
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c) They are photosynthetic in the presence of sunlight but behave like a heterotroph when deprived of sunlight
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d) Pigments of Euglenoids are identical are to those present in higher plants
Explanation
Euglenoids (such as Euglena) are unicellular protists commonly found in fresh water. Instead of cell wall, a protein-rich cell membrane known as pellicle is present. They bear two flagella on the anterior end of the body. A small light sensitive eye spot is present. They contain photosynthetic pigments such as chlorophyll and can thus prepare their own food. However, in absence of light, they behave similar to heterotrophs by capturing other small aquatic organisms. They have both plant and animal-like features, which makes them difficult to classify and hence they are called as connecting link between plants and animals. Answer:(a)
Q.23
Consider the following regarding the reasons for the fact that new Cyanobacteria are kept in Monera and not in Plantae i. They are prokaryotes ii The cell wall of cyanobacteria has peptidoglycan iii. They can fix atmospheric nitrogen The correct explanation would be
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a) i and ii only
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b) i and iii only
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c) ii and iii only
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d) i,ii and iii
Explanation
Answer:(d)
Q.24
Which of the following are valid pointers to the demerits of the kingdom classification proposed by Linnaeus? i. Euglena has features of plant and animal ii. Chlamydomans is autotrophic but has flagella iii) Slime molds resemble animals in one phase of their life cycle and plants in other phase
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a) i and ii only
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b) i and iii only
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c) ii and iii only
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d) i, ii and iii
Explanation
Answer:(d)
Q.25
Identify the group that is not matched correctly to all the characters shown:
Sr
Group
Cell type
Cell wall
Nuclear membrane
Body organisation
1
Monera
Prokaryotic
Absent
Absent
Cellular
2
Protista
Eukaryotic
Present in some
Present
Cellular
3
Fungi
Eukaryotic
Present
Present
Multicellular/loose
4
Plantae
Eukaryotic
Present
Present
Tissue/Organ
0%
a) 1
0%
b) 2
0%
c) 3
0%
d) 4
Explanation
group Monera : cell wall = absent is not correct Monera cell wall is of Noncellulosic (Polysaccharide + amino acid) Please refer 11th NCERT page no 17 table 2.1 Answer:(a)
Q.26
Match Column I with Column II
Column I ( Bacterium)
Column(Shape)
i. Escherechia coli
Spherical
ii. Streptococcus pyogenes
Helically coiled
iii. Treponema pallidum
Rod shape
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a) i – 1, ii- 2, iii- 3
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b) i – 3, ii- 1, iii- 2
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c) i – 3, ii- 2, iii- 1
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d) i – 1, ii- 3, iii- 2
Explanation
Answer:(b)
Q.27
Identify the incorrect statement regarding bacteria
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a) Bacteria are the most abundant microorganisms
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b) Bacteria also live in extreme habitats where very few other life forms can survive
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c) Bacteria as group show the most extensive metabolic diversity
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d) They are obligate intercellular parasites
Explanation
Answer:(d)
Q.28
Identify a character that is not unique to archaebacteria
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a) Cell wall structure
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b) Cell membrane stricture
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c) Flagellin protein structure
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d) Fatty acid synthase
Explanation
Answer:(d)
Q.29
In which of the following patterns of viral replication viruses enter a cell, replicate and then cause the cell to burst, releasing new virus?
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a) Lytic
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b) Lysogenic
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c) Repreogenic
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d) Both (a) and (b)
Explanation
Answer:(a)
Q.30
These organisms are fungus like in one phase of their life cycle and Amoeba like in another phase of their life cycle
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a) diatoms
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b) slime molds
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c) dinoflagellates
0%
d) water molds
Explanation
Answer:(b)
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