Related Questions
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4
Identify the basis of classification of fungi into phycomycetes, ascomycetes, basidiomycetes and deuteromycetes.
i. Fruiting bodies
ii. Nature of habitat
iii. Morphology of mycelium
iv. Mode of spore formation
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4
Which of the following is the correct sequence of three steps in the sexual cycle of fungi?
A. Mitosis -> Meiosis -> Fertilization
B. Plasmogamy -> Karyogamy -> Meiosis
C. Mitosis -> Plasmogamy -> Karyogamy
D. Karyogamy -> Plasmogamy -> Meiosis
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4
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.
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4
Which of the following pair is correctly matched ?
A. Fungi Saprophytic parasitic mode of nutrition.
B. Monera Nuclear membrane is present.
C. Plantae Cell wall is made up of cellulose.
D. Animalia Cell wall is absent.
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4
Match column-I (Characters/feature) with column-II (examples) and choose the correct option.
Column-I | Column-II | (Characters/features) | (Examples) |
A. Red dinoflagellates | I. Rhizopus |
B. Unicellular fungi used to | II. Gonyaulax make bread and beer |
C. Source of antibiotics | III. Yeast |
D. Bread mould | IV. 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
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4
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
D. dikaryotic cell, which is also heterokaryotic
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Which of the following is used extensively in biochemical and genetic work ?
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4
Match column I (Kingdom) with column II (Class) and select the correct options
Column-I | Column-II | (Kingdom) | (Class) |
A. Plantae | I. Archaebacteria |
B. Fungi | II. Euglenoids |
C. Protista | III. Phycomycetes |
D. Monera | IV. 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
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4
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.
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4
Which of the following is a parasitic fungi on the mustard plant ?
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4
Which of the following processes involved in the reproduction of protists ?
A. Binary fission and budding
B. Cell fusion and zygote formation
C. Spore formation and cyst formation
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4
Bacteria and yeast are similar in all the following features except that
C. both are capable of causing fermentation.
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4
The subunit of capsid is called
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4
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).
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4
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.
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4
Which of the following pair is not correctly matched ?
A. Anabaena Cyanobacteria
C. Gonyaulax Dinoflagellates
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4
The bacteria which oxidize various inorganic substances and use the released energy for their ATP production are called _______________.
B. Heterotrophic bacteria
C. Photosynthetic autotrophic bacteria
D. Chemosynthetic autotrophic bacteria
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4
The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as
C. chemosynthetic autotrophs
D. heterotrophic bacteria
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4
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?
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4
Match the class of fungi given in column I with their examples given in column II and choose the correct option
Column-I | Column-II | (Class of fungi) | (Examples) |
A. Ascomycetes | I. Rhizopus |
B. Basidiomycetes | II. Penicillium |
C. Deuteromycetes | III. Ustilago |
D. Phycomycetes | IV. 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
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Bladderwort and Venus fly trap are examples of
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Which of the following kingdom does not have nuclear membrane ?
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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.
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4
The symbiotic association of fungi and algae is called
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4
Which of the following class of fungi is being described by the given statements ?
(i) They are found in aquatic habitats and on decaying wood in moist and damp places.
(ii) Mycelium is aseptate and coenocytic.
(iii) Asexual reproduction takes place by zoospores (motile) or by aplanospores (non-motile).
(iv) Some common examples are Mucor, Rhizopus and Albugo.
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4
Bacteria lack alternation of generation because there is
A. neither syngamy nor reduction division.
B. no distinct chromosomes.
D. no exchange of genetic material.
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4
Protozons are not included in kingdom animalia because they are
B. unicellular eukaryotes.
C. heterotrophic in nature.
D. multicellular prokaryotes.
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4
The given statements are some characters of a particular group of Kingdom protista.
(i) Most of them are fresh water organisms found in standing water.
(ii) They have a protein rich layer (called pellicle) which makes their body flexible.
(iii) They have two flagella, a short and a long one.
(iv) Though they are photosynthetic in the presence of sunlight, but in the absence of sunlight they behave like heterotrophs by predating on other smaller organisms.
Identify the correct group on the basis of these characters.
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4
The genetic material of virus includes
D. RNA or DNA i.e. one nucleic acid in a virus.
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Which of the following is not a viral disease ?