NEET Biology · Flashcards
This deck has 22 flashcards on Diversity in Living World for NEET Biology, from NCERT Class 11. It covers the NCERT chapters The Living World, Biological Classification, Plant Kingdom and Animal Kingdom.
A comprehensive NEET biology review covering the principles of taxonomy, biological classification, and the diverse phylogenies of the plant and animal kingdoms.
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Card 1 of 22
What are the 'defining properties' of living organisms versus 'characteristic features'?
Hint: Think about mules (cannot reproduce) or mountains (can 'grow' by accumulation).
Answer
Defining properties (with no exceptions) are Metabolism, Cellular organization, and Consciousness. Characteristic features (have exceptions) are Growth and Reproduction.
Card 2 of 22
What is the correct sequence of the Taxonomical Hierarchy from broadest to most specific?
Hint: Mnemonic: Keep Pots Clean Or Family Gets Sick
Answer
Card 3 of 22
State the universal rules of Binomial Nomenclature.
Hint: Introduced by Carolus Linnaeus.
Answer
1. Biological names are usually in Latin and written in italics. 2. First word is Genus (capitalized), second is specific epithet (lowercase). 3. When handwritten, both words are separately underlined.
Card 4 of 22
What were the main criteria used by R.H. Whittaker for his Five Kingdom Classification?
Hint: There are 5 main criteria for the 5 kingdoms.
Answer
Cell structure, body organization (thallus), mode of nutrition, reproduction, and phylogenetic relationships.
Card 5 of 22
How do Archaebacteria differ from Eubacteria to survive in extreme conditions?
Hint: Think methanogens, halophiles, and thermoacidophiles.
Answer
Archaebacteria have a different cell wall structure (lack peptidoglycan, have branched-chain lipids in the membrane) which is responsible for their survival in extreme environments.
Card 6 of 22
What are the characteristic features of Diatoms (Chrysophytes)?
Hint: Belong to Kingdom Protista.
Answer
They have indestructible cell walls embedded with silica forming two overlapping shells (like a soapbox). They are the chief producers in the oceans and form 'Diatomaceous earth'.
Card 7 of 22
Name the four major classes of Fungi and their defining sexual spores.
Hint: Sac fungi, Club fungi, Fungi imperfecti.
Answer
1. Phycomycetes (Zygospores) 2. Ascomycetes (Ascospores - endogenous) 3. Basidiomycetes (Basidiospores - exogenous) 4. Deuteromycetes (Sexual reproduction absent/unknown).
Card 8 of 22
Differentiate between Viruses, Viroids, and Prions based on their infectious agents.
Hint: Viroids cause Potato Spindle Tuber disease; Prions cause Mad Cow disease.
Answer
Viruses: Nucleoprotein (DNA or RNA + protein coat). Viroids: Free, infectious, low molecular weight RNA (lacks protein coat). Prions: Abnormally folded infectious proteins (lacks nucleic acid).
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