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💡 Nature’s recyclers
Mushrooms, moulds and yeast do not make their own food — they absorb it, breaking down dead leaves and logs and returning minerals to the soil.
What is Kingdom Fungi?
Fungi
Heterotrophic eukaryotes with chitin cell walls that absorb food from dead matter.
Example:
mushroom, yeast, Aspergillus
- Fungi are mostly multicellular eukaryotes with cell walls of chitin (yeast is an exception — unicellular, but has a chitin wall).
- They do not make their own food; they absorb nutrients from dead or decaying matter through fine filaments that form a network called mycelium .
- Most are saprophytes and decomposers ; some are symbiotic and some parasitic. They reproduce by spores — e.g. mushrooms, Aspergillus , Penicillium (used for enzymes and antibiotics).
NCERT Question 14 — A researcher identified a unicellular
A researcher identified a unicellular eukaryotic organism as fungi. What identification key would you suggest according to the five kingdom classification to keep a unicellular organism in the Kingdom Fungi?
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🌎 Bridging Science and Society
Wild edible mushrooms are a valuable dietary food with high nutritional and medicinal value, conserved by many communities, including tribal communities in India, who possess traditional knowledge (folk taxonomy) of edible and poisonous mushrooms. Mushroom cultivation is a promising livelihood — easy and accessible, needing little space, low investment and a fast life cycle (30–45 days).
Important Definitions
- Fungi — the kingdom of mostly multicellular, heterotrophic eukaryotes with cell walls made of chitin.
- Mycelium — the network formed by the fine filaments through which a fungus absorbs nutrients.
- Saprophyte — an organism that feeds on dead organic matter such as fallen leaves, twigs or dead organisms.
- Chitin — the material that makes up the cell wall of fungi.
