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4

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

Correct Answer :

A. A II, B I, C IV, D III


Phycomycetes, ascomycetes, basidiomycetes and deuteromycetes are four classes of fungi which are divided on the basis of the septation of the mycelium and the characteristics features of reproduction. Phycomycetes, ascomycetes, basidiomycetes and deuteromycetes are respectively commonly known as algal like fungi, sac fungi, club fungi and fungi imperfecti.

Related Questions

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4

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.

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4

Which of the following statement is/ are correct for bacteria ?

A. They are the members of the kingdom monera.

B. They live in extreme habitats such as hot springs, deserts, snow and deep oceans.

C. They show the most extensive metabolic diversity.

D. All of the above

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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

A. i & ii only

B. ii & iii only

C. i, ii, & iv only

D. All of these

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4

A specimen of fungus is brought by a student for identification. Upon close examination, he discovered that its hyphae are completely septate and it has gills on the underside of the pileus. To which fungal group does it most likely belong ?

A. Basidiomycetes

B. Zygomycetes

C. Ascomycetes

D. Chytrids

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4

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

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4

Which of the following is a parasitic fungi on the mustard plant ?

A. Albugo

B. Puccinia

C. Yeast

D. Ustilago

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4

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

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4

T. O. Diener discovered a new infectious agent that was smaller than viruses and have the following characteristics.
(i) It causes potato spindle tuber disease.
(ii) It has free RNA.
(iii) Molecular weight of RNA is low.
Identify the infections agent.

A. Viruses

B. Viroids

C. Virion

D. Mycoplasma

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4

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.

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4

Match column I with column II and choose the correct option.
Column IColumn II
A. Mycoplasma(i) Nitrogen fixing cells
B. Decomposers(ii) Blue green algae
C. Methanogens(iii) Production of methane
D. Heterocysts(iv) Most abundant heterotrophs
E. Cyanobacteria(v) Pathogenic in plants and animals

A. A-(i) B-(ii) C-(iii) D-(iv) E-(v)

B. A-(iii) B-(v) C-(ii) D-(iv) E-(i)

C. A-(iii) B-(i) C-(v) D-(ii) E-(iv)

D. A-(v) B-(iv) C-(iii) D-(i) E-(ii)

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4

Which of the following are the characters of dinoflagellates?
(i) They are planktonic golden yellow algae with soap box like structure.
(ii) They are marine red biflagellated protista.
(iii) They appear yellow, green, brown, blue and red in colour.
(iv) They are biflagellated organisms with pellicle.
(v) They are saprophytic (or) parasitic unicellular forms.

A. (ii) and (iii)

B. (ii) and (v)

C. (i), (ii) and (iii)

D. (ii), (iv) and (v)

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4

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.

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4

How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosomes, Porphyra, Wolffia

A. Four

B. Five

C. Six

D. Three

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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

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 spores 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

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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.

A. Both (i) and (ii)

B. Only (ii)

C. (i), (iii) and (iv)

D. All of these

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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

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

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4

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

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4

Which of the following statements regarding cyanobacteria is incorrect?

A. It is also called blue green algae.

B. They are chemosynthetic autotrophs.

C. It forms blooms in polluted water bodies.

D. It is unicellular, colonial or filamentous, marine or terrestrial bacteria.

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4

Bladderwort and Venus fly trap are examples of

A. insectivorous plants

B. parasitic plants

C. N2 rich plants

D. aquatic plants

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4

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.

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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.

A. Protozoans

B. Chrysophytes

C. Slime moulds

D. Euglenoids

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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

A. cyanobacteria

B. archaebacteria

C. chemosynthetic autotrophs

D. heterotrophic bacteria

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4

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.

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4

Yeast is not included in protozoans but in fungi because

A. it has no chlorophyll.

B. some fungal hyphae grow in such a way that they give the appearance of pseudomycelium.

C. it has eukaryotic organization.

D. cell wall is made up of cellulose and reserve food material is starch.

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4

Chemosynthetic autotrophic bacteria are named so because

A. they oxidize various inorganic substances such as nitrates, nitrites and ammonia and use the released energy for their ATP production.

B. they oxidize various organic substances and use the released energy for their ATP production.

C. both (a) and (b)

D. none of these

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4

Refer the given figure of bacteria cell and Nostoc and choose the option which shows correct label for the structure marked as A, B, C, D and E ? 
img1

A. A – Cell wall, B – Cell membrane, C – Heterocyst, D – DNA, E – Mucilagenous sheath

B. A – Cell wall, B – Cell membrane, C – DNA, D – Heterocyst, E – Mucilagenous sheath

C. A – Mucilagenous sheath, B – Cell membrane, C – DNA, D – Heterocyst, E – Cell wall

D. A – Cell membrane, B – Cell wall, C – DNA, D – Heterocyst, E – Mucilagenous sheath

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4

A fungus contains cells with two nuclei from different genomes. The nuclei do not fuse but divide independently and simultaneously as new cells are formed. This fungus belongs to

A. phycomycetes

B. zygomycetes

C. deuteromycetes

D. basidiomycetes

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4

Ustilago causes plant diseases (called smuts) because

A. they parasitize on cereals.

B. they lack mycelium.

C. they develop sooty masses of spores.

D. their affected parts becomes completely black.