GENERAL SCIENCE BIOLOGY ONE LINERS FOR TNPSC UPSC SSC SET 124

GENERAL SCIENCE BIOLOGY ONE LINERS FOR TNPSC UPSC SSC SET 124

1231). Quinine is made from
A). cinchona roots
B). cinchona fruits
C). cinchona leaf
D). cinchona bark

Answer: cinchona bark


    
1232). Phyllanthus niruri is a medicinal herb and it is used to cure
A). fever
B). jaundice
C). cold
D). nerve disorder

Answer: jaundice


    
1233). The dark reaction was worked out by an American scientist called
A). Melvin Calvin
B). R.T. Isnawshki
C). S.F. Watson
D). F.A. Black

Answer: Melvin Calvin


    
1234). "Breathing roots" of mangrove plants are also called
A). coralloid roots
B). pnematophores
C). respiratbry roots
D). both (B) and (c)

Answer: both (B) and (c)


    
1235). Hydroponics is
A). plant growth in mineral deficiency soil
B). submerged hydroponic plants
C). plant growth under lab condition
D). plant growth in liquid culture medium

Answer: plant growth in liquid culture medium



1236). Red tides are caused by
A). red algae
B). red dinoflagellates
C). red-coloured industrial effluents
D). blue-green algae

Answer: red dinoflagellates


    
1237). In angiosperms ovules develop into
A). fruits
B). seeds
C). endosperm
D). pericarp

Answer: seeds


    
1238). 'Tikka' is disease is found in
A). groundnut
B). citrus
C). sugarcane
D). sorghum

Answer: groundnut


    
1239). The unicellular algae used in space regulate oxygen supply is
A). chlamydomonas
B). chlorella
C). anabaena
D). spirogyra

Answer: chlorella


    
1240). Who is the well known Indian paleobotanist?
A). Birbal Sahni
B). M.S. Swaminathan
C). P. Maheswari
D). G. Rangaswamy

Answer: Birbal Sahni