39 public questions tagged with this topic.
Decomposers, such as fungi and bacteria, break down organic matter into simpler substances, facilitating nutrient cycling.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Nutrient Cycling - Carbon Phosphorus and Ecological Succession
Fungi decompose complex organic matter into simpler substances, playing a crucial role in nutrient recycling.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Decomposition - Process and Factors
Trichoderma polysporum produces cyclosporin A, which is used as an immunosuppressant.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Industrial Products - Beverages and Antibiotics
Fungi are heterotrophic organisms, whereas green plants are autotrophic. Their cell walls also differ: fungal walls contain chitin, while plant cell walls are mainly cellulosic. These differences support their placement in separate kingdoms.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Five Kingdom Classification and Kingdom Plantae Animalia
In lichens, the algal phycobiont prepares food, while the fungal mycobiont provides shelter and absorbs water and mineral nutrients. Lichens do not grow in polluted areas and therefore serve as pollution indicators.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Viruses Viroids Prions and Lichens
The phycobiont is the autotrophic algal partner and prepares food. The mycobiont is the heterotrophic fungal partner; it provides shelter and absorbs mineral nutrients and water for the association.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Viruses Viroids Prions and Lichens
Ascomycetes produce sexual ascospores endogenously inside sac-like asci. Basidiomycetes produce basidiospores exogenously on basidia. Both groups generally possess branched, septate mycelium.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes
Neurospora is an ascomycete that is used extensively in biochemical and genetic work. Other examples of Ascomycetes include Aspergillus and Claviceps.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Protista - Chrysophytes and Dinoflagellates
The fungal sexual cycle involves plasmogamy, the fusion of protoplasms; karyogamy, the fusion of nuclei; and meiosis in the zygote, which produces haploid spores.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Bacteria - Structure and Economic Importance
Fungal cell walls are composed of chitin and polysaccharides.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Bacteria - Structure and Economic Importance
In Basidiomycetes, asexual spores are generally not found. Vegetative reproduction by fragmentation is common, while sexual reproduction ultimately results in the formation of basidiospores.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Kingdom Monera - Archaebacteria and Eubacteria
Phycomycetes reproduce asexually by motile zoospores or non-motile aplanospores. These spores are produced endogenously within a sporangium.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Kingdom Monera - Archaebacteria and Eubacteria
