285856
When a moist breadis kept exposed in air, it becomes mouldy and black because
1 phycomycetes
2 zygomycetes
3 deuteromycetes
4 basidiomycetes
Explanation:
(b) When moist bread is kept exposed in air, it becomes mouldly and black because spores are present in the bread.
Q 37. Ustilago causes plant disease known as#[examname: NCERT Page-24 / N-18]#
(a.) rust
(b.) Bovine spongiform encephalopathy
(c.) Cr-Jacob disease
(d.) Black smut
Ans: d
Exp: (d) Smut disease is caused by Ustilago species of basidiomycetes fungi. It is characterized by formation of black coloured chlamydospores or teleutospores (called smut spores) due to which the affected part becomes black.
Q 38. A fungus contains cells with two nuclei from different genomes. The nucleido not fuse but divide independently and simultaneously as new cells are formed. This fungus belongs to #[examname: NCERT Page-24 / N-18]#
(a.) phycomycetes
(b.) zygomycetes
(c.) deuteromycetes
(d.) basidiomycetes
Ans: d
Exp: (d) Basidiomycetes are commonly known as club fungi. They are fungus whose spores develop in basidia. They include the majority of familiar mushrooms and toadstools.
NCERT Page-24 / N-18
BIOLOGICAL CLASSIFICATION(NCERT)
285857
Which of the following organismsislare correctly assigned its/their taxonomic group?
1 Paramecium and Plasmodium belong to the same kingdom as that ofPenicillium.
2 Lichen is a composite organism formed from the symbiotic association of an alga and a protozoan.
3 Yeast used in making bread and beer is a fungus.
4 Nostoc and Anabaena are examples of protista.
Explanation:
(c) Saccharomyces cervisiae is a yeast used in making bread (Baker's yeast) and commercial production of ethanol. Paramecium and Plasmodium are of animal kingdom while Penicillium is a fungi. Lichen is composite organism formed from the symbiotic association of an alga and a fungus. Nostoc and Anabaena are examples of kingdom monera.
NCERT -22/N-17
BIOLOGICAL CLASSIFICATION(NCERT)
285858
Fungi show asexual reproduction by all of the following kinds of spores except:
1 conidia
2 oospores
3 sporangiospores
4 zoospores
Explanation:
(b) In fungi, asexual reproduction takes place by spores-called conidia or sporangiospores or zoospores, and sexual reproduction is by oospores, ascospores and basidiospores.
NCERT Page-23/N-17
BIOLOGICAL CLASSIFICATION(NCERT)
285859
Bacteria and yeast are similar in all the following features except that
1 both are unicellular.
2 both are prokaryotes.
3 both are capable of causing fermentation.
4 both produce spores.
Explanation:
(b) Bacteria are prokaryotes while yeast belongs to the-kingdom Fungi (they are multicellular eukaryotes). Yeast is exception in fungi because it is unicellular but forms pseudomycelium.
NCERT Page-22 / N-16
BIOLOGICAL CLASSIFICATION(NCERT)
285860
Which class of fungi lacks sex organs but the process ofplasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes?
1 Sac fungi
2 Imperfect fungi
3 Bracket fungi
4 Phycomycetes
Explanation:
(b) Bracket fungi belong to basidiomycetes. This class of fungi lacks sex organs but the process of plasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes.
285856
When a moist breadis kept exposed in air, it becomes mouldy and black because
1 phycomycetes
2 zygomycetes
3 deuteromycetes
4 basidiomycetes
Explanation:
(b) When moist bread is kept exposed in air, it becomes mouldly and black because spores are present in the bread.
Q 37. Ustilago causes plant disease known as#[examname: NCERT Page-24 / N-18]#
(a.) rust
(b.) Bovine spongiform encephalopathy
(c.) Cr-Jacob disease
(d.) Black smut
Ans: d
Exp: (d) Smut disease is caused by Ustilago species of basidiomycetes fungi. It is characterized by formation of black coloured chlamydospores or teleutospores (called smut spores) due to which the affected part becomes black.
Q 38. A fungus contains cells with two nuclei from different genomes. The nucleido not fuse but divide independently and simultaneously as new cells are formed. This fungus belongs to #[examname: NCERT Page-24 / N-18]#
(a.) phycomycetes
(b.) zygomycetes
(c.) deuteromycetes
(d.) basidiomycetes
Ans: d
Exp: (d) Basidiomycetes are commonly known as club fungi. They are fungus whose spores develop in basidia. They include the majority of familiar mushrooms and toadstools.
NCERT Page-24 / N-18
BIOLOGICAL CLASSIFICATION(NCERT)
285857
Which of the following organismsislare correctly assigned its/their taxonomic group?
1 Paramecium and Plasmodium belong to the same kingdom as that ofPenicillium.
2 Lichen is a composite organism formed from the symbiotic association of an alga and a protozoan.
3 Yeast used in making bread and beer is a fungus.
4 Nostoc and Anabaena are examples of protista.
Explanation:
(c) Saccharomyces cervisiae is a yeast used in making bread (Baker's yeast) and commercial production of ethanol. Paramecium and Plasmodium are of animal kingdom while Penicillium is a fungi. Lichen is composite organism formed from the symbiotic association of an alga and a fungus. Nostoc and Anabaena are examples of kingdom monera.
NCERT -22/N-17
BIOLOGICAL CLASSIFICATION(NCERT)
285858
Fungi show asexual reproduction by all of the following kinds of spores except:
1 conidia
2 oospores
3 sporangiospores
4 zoospores
Explanation:
(b) In fungi, asexual reproduction takes place by spores-called conidia or sporangiospores or zoospores, and sexual reproduction is by oospores, ascospores and basidiospores.
NCERT Page-23/N-17
BIOLOGICAL CLASSIFICATION(NCERT)
285859
Bacteria and yeast are similar in all the following features except that
1 both are unicellular.
2 both are prokaryotes.
3 both are capable of causing fermentation.
4 both produce spores.
Explanation:
(b) Bacteria are prokaryotes while yeast belongs to the-kingdom Fungi (they are multicellular eukaryotes). Yeast is exception in fungi because it is unicellular but forms pseudomycelium.
NCERT Page-22 / N-16
BIOLOGICAL CLASSIFICATION(NCERT)
285860
Which class of fungi lacks sex organs but the process ofplasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes?
1 Sac fungi
2 Imperfect fungi
3 Bracket fungi
4 Phycomycetes
Explanation:
(b) Bracket fungi belong to basidiomycetes. This class of fungi lacks sex organs but the process of plasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes.
285856
When a moist breadis kept exposed in air, it becomes mouldy and black because
1 phycomycetes
2 zygomycetes
3 deuteromycetes
4 basidiomycetes
Explanation:
(b) When moist bread is kept exposed in air, it becomes mouldly and black because spores are present in the bread.
Q 37. Ustilago causes plant disease known as#[examname: NCERT Page-24 / N-18]#
(a.) rust
(b.) Bovine spongiform encephalopathy
(c.) Cr-Jacob disease
(d.) Black smut
Ans: d
Exp: (d) Smut disease is caused by Ustilago species of basidiomycetes fungi. It is characterized by formation of black coloured chlamydospores or teleutospores (called smut spores) due to which the affected part becomes black.
Q 38. A fungus contains cells with two nuclei from different genomes. The nucleido not fuse but divide independently and simultaneously as new cells are formed. This fungus belongs to #[examname: NCERT Page-24 / N-18]#
(a.) phycomycetes
(b.) zygomycetes
(c.) deuteromycetes
(d.) basidiomycetes
Ans: d
Exp: (d) Basidiomycetes are commonly known as club fungi. They are fungus whose spores develop in basidia. They include the majority of familiar mushrooms and toadstools.
NCERT Page-24 / N-18
BIOLOGICAL CLASSIFICATION(NCERT)
285857
Which of the following organismsislare correctly assigned its/their taxonomic group?
1 Paramecium and Plasmodium belong to the same kingdom as that ofPenicillium.
2 Lichen is a composite organism formed from the symbiotic association of an alga and a protozoan.
3 Yeast used in making bread and beer is a fungus.
4 Nostoc and Anabaena are examples of protista.
Explanation:
(c) Saccharomyces cervisiae is a yeast used in making bread (Baker's yeast) and commercial production of ethanol. Paramecium and Plasmodium are of animal kingdom while Penicillium is a fungi. Lichen is composite organism formed from the symbiotic association of an alga and a fungus. Nostoc and Anabaena are examples of kingdom monera.
NCERT -22/N-17
BIOLOGICAL CLASSIFICATION(NCERT)
285858
Fungi show asexual reproduction by all of the following kinds of spores except:
1 conidia
2 oospores
3 sporangiospores
4 zoospores
Explanation:
(b) In fungi, asexual reproduction takes place by spores-called conidia or sporangiospores or zoospores, and sexual reproduction is by oospores, ascospores and basidiospores.
NCERT Page-23/N-17
BIOLOGICAL CLASSIFICATION(NCERT)
285859
Bacteria and yeast are similar in all the following features except that
1 both are unicellular.
2 both are prokaryotes.
3 both are capable of causing fermentation.
4 both produce spores.
Explanation:
(b) Bacteria are prokaryotes while yeast belongs to the-kingdom Fungi (they are multicellular eukaryotes). Yeast is exception in fungi because it is unicellular but forms pseudomycelium.
NCERT Page-22 / N-16
BIOLOGICAL CLASSIFICATION(NCERT)
285860
Which class of fungi lacks sex organs but the process ofplasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes?
1 Sac fungi
2 Imperfect fungi
3 Bracket fungi
4 Phycomycetes
Explanation:
(b) Bracket fungi belong to basidiomycetes. This class of fungi lacks sex organs but the process of plasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes.
285856
When a moist breadis kept exposed in air, it becomes mouldy and black because
1 phycomycetes
2 zygomycetes
3 deuteromycetes
4 basidiomycetes
Explanation:
(b) When moist bread is kept exposed in air, it becomes mouldly and black because spores are present in the bread.
Q 37. Ustilago causes plant disease known as#[examname: NCERT Page-24 / N-18]#
(a.) rust
(b.) Bovine spongiform encephalopathy
(c.) Cr-Jacob disease
(d.) Black smut
Ans: d
Exp: (d) Smut disease is caused by Ustilago species of basidiomycetes fungi. It is characterized by formation of black coloured chlamydospores or teleutospores (called smut spores) due to which the affected part becomes black.
Q 38. A fungus contains cells with two nuclei from different genomes. The nucleido not fuse but divide independently and simultaneously as new cells are formed. This fungus belongs to #[examname: NCERT Page-24 / N-18]#
(a.) phycomycetes
(b.) zygomycetes
(c.) deuteromycetes
(d.) basidiomycetes
Ans: d
Exp: (d) Basidiomycetes are commonly known as club fungi. They are fungus whose spores develop in basidia. They include the majority of familiar mushrooms and toadstools.
NCERT Page-24 / N-18
BIOLOGICAL CLASSIFICATION(NCERT)
285857
Which of the following organismsislare correctly assigned its/their taxonomic group?
1 Paramecium and Plasmodium belong to the same kingdom as that ofPenicillium.
2 Lichen is a composite organism formed from the symbiotic association of an alga and a protozoan.
3 Yeast used in making bread and beer is a fungus.
4 Nostoc and Anabaena are examples of protista.
Explanation:
(c) Saccharomyces cervisiae is a yeast used in making bread (Baker's yeast) and commercial production of ethanol. Paramecium and Plasmodium are of animal kingdom while Penicillium is a fungi. Lichen is composite organism formed from the symbiotic association of an alga and a fungus. Nostoc and Anabaena are examples of kingdom monera.
NCERT -22/N-17
BIOLOGICAL CLASSIFICATION(NCERT)
285858
Fungi show asexual reproduction by all of the following kinds of spores except:
1 conidia
2 oospores
3 sporangiospores
4 zoospores
Explanation:
(b) In fungi, asexual reproduction takes place by spores-called conidia or sporangiospores or zoospores, and sexual reproduction is by oospores, ascospores and basidiospores.
NCERT Page-23/N-17
BIOLOGICAL CLASSIFICATION(NCERT)
285859
Bacteria and yeast are similar in all the following features except that
1 both are unicellular.
2 both are prokaryotes.
3 both are capable of causing fermentation.
4 both produce spores.
Explanation:
(b) Bacteria are prokaryotes while yeast belongs to the-kingdom Fungi (they are multicellular eukaryotes). Yeast is exception in fungi because it is unicellular but forms pseudomycelium.
NCERT Page-22 / N-16
BIOLOGICAL CLASSIFICATION(NCERT)
285860
Which class of fungi lacks sex organs but the process ofplasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes?
1 Sac fungi
2 Imperfect fungi
3 Bracket fungi
4 Phycomycetes
Explanation:
(b) Bracket fungi belong to basidiomycetes. This class of fungi lacks sex organs but the process of plasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes.
285856
When a moist breadis kept exposed in air, it becomes mouldy and black because
1 phycomycetes
2 zygomycetes
3 deuteromycetes
4 basidiomycetes
Explanation:
(b) When moist bread is kept exposed in air, it becomes mouldly and black because spores are present in the bread.
Q 37. Ustilago causes plant disease known as#[examname: NCERT Page-24 / N-18]#
(a.) rust
(b.) Bovine spongiform encephalopathy
(c.) Cr-Jacob disease
(d.) Black smut
Ans: d
Exp: (d) Smut disease is caused by Ustilago species of basidiomycetes fungi. It is characterized by formation of black coloured chlamydospores or teleutospores (called smut spores) due to which the affected part becomes black.
Q 38. A fungus contains cells with two nuclei from different genomes. The nucleido not fuse but divide independently and simultaneously as new cells are formed. This fungus belongs to #[examname: NCERT Page-24 / N-18]#
(a.) phycomycetes
(b.) zygomycetes
(c.) deuteromycetes
(d.) basidiomycetes
Ans: d
Exp: (d) Basidiomycetes are commonly known as club fungi. They are fungus whose spores develop in basidia. They include the majority of familiar mushrooms and toadstools.
NCERT Page-24 / N-18
BIOLOGICAL CLASSIFICATION(NCERT)
285857
Which of the following organismsislare correctly assigned its/their taxonomic group?
1 Paramecium and Plasmodium belong to the same kingdom as that ofPenicillium.
2 Lichen is a composite organism formed from the symbiotic association of an alga and a protozoan.
3 Yeast used in making bread and beer is a fungus.
4 Nostoc and Anabaena are examples of protista.
Explanation:
(c) Saccharomyces cervisiae is a yeast used in making bread (Baker's yeast) and commercial production of ethanol. Paramecium and Plasmodium are of animal kingdom while Penicillium is a fungi. Lichen is composite organism formed from the symbiotic association of an alga and a fungus. Nostoc and Anabaena are examples of kingdom monera.
NCERT -22/N-17
BIOLOGICAL CLASSIFICATION(NCERT)
285858
Fungi show asexual reproduction by all of the following kinds of spores except:
1 conidia
2 oospores
3 sporangiospores
4 zoospores
Explanation:
(b) In fungi, asexual reproduction takes place by spores-called conidia or sporangiospores or zoospores, and sexual reproduction is by oospores, ascospores and basidiospores.
NCERT Page-23/N-17
BIOLOGICAL CLASSIFICATION(NCERT)
285859
Bacteria and yeast are similar in all the following features except that
1 both are unicellular.
2 both are prokaryotes.
3 both are capable of causing fermentation.
4 both produce spores.
Explanation:
(b) Bacteria are prokaryotes while yeast belongs to the-kingdom Fungi (they are multicellular eukaryotes). Yeast is exception in fungi because it is unicellular but forms pseudomycelium.
NCERT Page-22 / N-16
BIOLOGICAL CLASSIFICATION(NCERT)
285860
Which class of fungi lacks sex organs but the process ofplasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes?
1 Sac fungi
2 Imperfect fungi
3 Bracket fungi
4 Phycomycetes
Explanation:
(b) Bracket fungi belong to basidiomycetes. This class of fungi lacks sex organs but the process of plasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes.
