561.
Stem distinctly differentiated in to node and internode in
A
Psilopsida
B
Lycopsida
C
Sphenopsida
D
Pteropsida
Answer :
Sphenopsida
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562.
Algae have cell wall made up of:
A
cellulose, galactans and mannans
B
hemicellulose, pectins and proteins
C
pectins, cellulose and proteins
D
cellulose, hemicellulose and pectins
Answer :
cellulose, galactans and mannans
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563.
Filament of Spirogyra is
A
Branched and filamentous
B
Unbranched and filamentous
C
Highly branched
D
All of the above
Answer :
Unbranched and filamentous
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564.
Which one is wrong statement?
A
Mucor has biflagellate zoospores
B
Haploid endosperm is typical feature of gymnosperms
C
Brown algae have chlorophyll $$a$$ and $$c$$ and fucoxanthin
D
Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms
Answer :
Mucor has biflagellate zoospores
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565.
In which plant "chilgoza" is the name of seed of
A
P.longifolia
B
P.gerardiana
C
Cycas circinalis
D
P.insularis
Answer :
P.gerardiana
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566.
Bryophytes are amphibians because
A
they require a layer of water for carrying out sexual reproduction
B
they occur in damp places
C
they are mostly aquatic
D
all the above
Answer :
they require a layer of water for carrying out sexual reproduction
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567.
Which of the following produce non motile gametes
A
Ulothrix
B
Spirogyra
C
Anabaena
D
Cladophora
Answer :
Spirogyra
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568.
N Riccia, stomata are found on
A
Dorsal assimilatory region
B
Sprorangium
C
Ventral scales
D
No where on Riccia
Answer :
No where on Riccia
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569.
In the life cycle of Riccia, the stage in which meosis occurs, is
A
Sporogonium
B
Oospore
C
Spore mother cell
D
Gamete formation
Answer :
Spore mother cell
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570.
The zoo gametangia and zoo sporangia of Ulothrix re
A
Jacketed and unicellular
B
Non jacketed and unicellular
C
Jacketed and multi cellular
D
Non jacketed and multi cellular
Answer :
Non jacketed and unicellular
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