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