Lichen
1.Lichens are sensitive to:
a.NO2 pollution
b.SO2 pollution
c.CO pollution
d.O3 pollution
Ans------>b
2.Litmus is obtained from the:
a.Lecanora
b.Cetraria
c.Rocella
d.Parmelia
Ans------>c
3.Lichens growing in rocks are called
a.Corticolous
b.Coprophilous
c.Terricolous
d.Saxicolous
Ans------>d
4.Lichen are ecologically important becaue
a.They are primitive inhabitors of rock
b.They are association of algae and fungi
c.Can’t grow in SO2 polluted area
d.All of the above
Ans------>d
5.Lichens respire by:
a.Soredia
b.Gonidia
c.Conidia
d.Oidia
Ans------>a
6.Lichens participate in :
a.Xerosere
b.Holosere
c.Hydrosere
d.Psammosere
Ans------>a
7.Reindeer moss belongs to the genus:
a.Cetaria
b.Lobaria
c.Usnea
d.Cladonia
Ans------>d
8.Cetraria is used in the treatment of;
a.Cancer
b.Epilepsy
c.Diabetes
d.Whooping cough
Ans------>c
9.Which of the following is called old man’s bread ?
a.Usnea
b.Parmelia
c.Cetraria
d.Cladonia
Ans------>a
10.Ribbon like lichen is called as:
a.Foliose lichen
b.Fructicose lichen
c.Crustose lichen
d.Thallose lichen
Ans------>b
11.Foliose lichen are attached to the substratum by me Ans of; a.Roots b.Rhizoids c.Rhizinae d.Rhizome Ans------>c 12.Lichen reproduce vegetatively by; a.Soredia b.Cyphelia c.Conidia d.Oidia Ans------>a 13.Parmelia ia a________ lichen. a.Crustose b.Foliose c.Fructicose d.Maltose Ans------>b 14.The mode of life of lichen is : a.Obligatory parasite b.Saprophytes c.Symbionts d.None Ans------>c 15.Which of the following is fructicose lichen? a.Rhizocarpon b.Cladonia c.Parmelia d.Peltigera Ans------>b 16.Reindeer moss belongs to the genus; a.Cetaria b.Lobaria c.usnea d.cladonia Ans------>d 17.a common phycobionts: a.microcystis b.trebouxia c.euglena d.cetararia Ans------>b