Chapter 12
Patterns in Life: Diversity and Classification
CBSE Class 9
Science Solutions
Educart Science class Class 9 NCERT Exemplar cover
Question:

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?

Answer: Verified

To identify a unicellular eukaryotic organism as belonging to the Kingdom Fungi under the Five Kingdom Classification, the following identification keys should be applied:

(1) Cell type: Must be eukaryotic, with a true nucleus and membrane-bound organelles.

(2) Mode of nutrition: Strictly heterotrophic by absorption (saprophytic or parasitic).

(3) Cell wall composition: Presence of a cell wall made of chitin, unlike cellulose in plants.

(4) Reproduction: Reproduction by spores, often through budding or simple fission in unicellular fungi (e.g., Saccharomyces).

(5) Energy storage: Reserve food stored as glycogen, not starch.

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More NCERT Questions
An earthworm (annelida) and a beetle (arthropoda), both have segmented bodies but the beetle has a hard external skeleton. How does the beetle's external skeleton help it survive? [Pg. No. 242] Does the term 'biodiversity' relate only to the variety of organisms, or does it encompass other elements? [Pg. No. 247] Sponges represent one of the simplest animal body plants. Their bodies lack true tissues and organs. Which feature of sponge cells supports its classification under the animal kingdom? (a) Absence of Meena and Hari observed an animal in their garden. Hari called it an insect while Meena said it was an earthworm. Choose the correct option which confirms that it is an insect. (a) Bilateral symmetric