Back to AI Flashcard MakerBiology /Biology NEET - XI: Chapter 2- Biological Classification Part 4

Biology NEET - XI: Chapter 2- Biological Classification Part 4

Biology30 CardsCreated about 2 months ago

This deck covers key concepts related to plant virus symptoms, viroids, prions, and classifications of life including bacteria and archaebacteria.

What symptoms does a virus-infected plant show?

Leaf rolling and curling, mosaic formation, yellowing and vein clearing, dwarfing and stunted growth
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Key Terms

Term
Definition
What symptoms does a virus-infected plant show?
Leaf rolling and curling, mosaic formation, yellowing and vein clearing, dwarfing and stunted growth
Who discovered viroids?
T.O. Diener

Potato spindle tuber disease is caused by

Viroids

What are viroids?

Low molecular weight Free RNA

What do viroids lack that all viruses have?
Protein coat
What kind of infections do prions cause?
Neurological diseases

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TermDefinition
What symptoms does a virus-infected plant show?
Leaf rolling and curling, mosaic formation, yellowing and vein clearing, dwarfing and stunted growth
Who discovered viroids?
T.O. Diener

Potato spindle tuber disease is caused by

Viroids

What are viroids?

Low molecular weight Free RNA

What do viroids lack that all viruses have?
Protein coat
What kind of infections do prions cause?
Neurological diseases
Prions have a size similar to what?
Viruses
What is a prion?
Abnormally folded protein

Bovine spongiform encephalopathy is caused by

Prion

Bovine spongiform encephalopathy is also known as

Mad cow disease

Cr-Jakob disease is cause by

Prions

What is the analogue of mad cow disease in humans

Cr- Jakob disease

Pliny's classification of plants is based on

Stem

Which kingdoms were included in the three kingdom classification?

Protista, Animalia, Plantae

Which kingdoms were included in the four kingdom classification?

Monera, Protista, Animalia, Plantae

What was Carl Woese studying which made him develop the six kingdom classification?

16s r-RNA gene

Who gave the three domains of life?

Carl Woese

Chromosomes are absent in

Monerans

Why can archaebacteria survive in harsh conditions?

Due to absence of peptidglycans

Which group of monerons have introns?

Archaebacteria

In archaebacteria, membrane lipids are linked to

Esters

In eubacteria, membrane lipids are linked to

Ether

L glycerol phosphate is found in the membrane lipids of which monerans?

Archaebacteria

D glycerol phosphate is found in the membrane lipids of which monerans?

Eubacteria

Thermoacidophils oxidise sulphur to

Sulphuric acid