Latest questions in this category.
In Ascomycetes and Basidiomycetes, plasmogamy may not be followed immediately by karyogamy. An intervening dikaryotic stage with two nuclei per cell, written as n + n, occurs and is called the dikaryophase.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
With the exception of unicellular yeasts, fungi are generally filamentous. Their bodies consist of thread-like hyphae, and the network formed by these hyphae is called the mycelium.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
In Ascomycetes, asexual spores called conidia are produced exogenously on special mycelium called conidiophores. Their sexual spores, the ascospores, are produced endogenously inside sac-like asci.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
The mycelium of Phycomycetes is aseptate and coenocytic. This means that the hyphae lack cross walls and contain multinucleated cytoplasm within a continuous tube.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
Deuteromycetes are called imperfect fungi because only their asexual or vegetative phases are known. When their sexual forms are discovered, they are moved to the fungal classes to which they correctly belong.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
Deuteromycetes are called imperfect fungi because only their asexual or vegetative phases are known. They reproduce by asexual spores called conidia.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
Penicillium is an Ascomycete, or sac fungus, and is a source of antibiotics. Ascomycetes possess branched, septate mycelium and commonly produce conidia externally on conidiophores.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
The features identify Phycomycetes. Members of this class may occur on decaying wood in moist places, possess aseptate coenocytic mycelium and produce zoospores or aplanospores inside sporangia. Mucor is an example.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
The fungus belongs to Basidiomycetes. Karyogamy and meiosis occur in a basidium, and basidiospores are produced externally on it. Asexual spores are generally absent in this group.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
Deuteromycetes contain fungi whose sexual stages are not known. Once the sexual stage is discovered, the fungus is transferred to the appropriate class. Production of basidiospores identifies the sexual form as a Basidiomycete.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
Yeast is a unicellular fungus used in preparing bread and beer and belongs to Ascomycetes. Budding is one of the vegetative methods of reproduction described for fungi.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
Neurospora is an Ascomycete used extensively in biochemical and genetic work. Ascomycetes possess branched, septate mycelium and form sexual ascospores inside asci.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
