Archegonia in Riccia are
projecting type and sessile
projecting type and stalked
embedded and sessile
embedded and stalked
Correct Answer :
A. projecting type and sessile
Related Questions
The largest bryophyte is
Powsonia
Mcgaccros
lunaria
Sphagnum
Funaria is a bryophyte because
lacks root
lacks xyiem
no production of seed
has mukkeikd and jacketed sex organs
Gametophyte is most developed in
Moss
Fern
Cycas
Pinus
Venter is the part of
sporogonium
archegonium
gametophyte
antheridium
Archegonia in Riccia are
projecting type and sessile
projecting type and stalked
embedded and sessile
embedded and stalked
The centre of moss axis is occupied by
a large pith
the xylem
the so-called conduction tissue
none of these
The development of sporophyte from moss gametophyte without sexual fusion in called
(a) amphimixis
parthenogenesis
apospory
apogamy
Female garnet ophy tie structure of a bryophyte differs from that of a fungus in having
a unicellular stalk
a sterile jacket
a single cell only
none of these
The body of Funaria is
Simple rosette thallus
Differentiated into root, axis and leaves
Differentiated into rhizoids, short axis and leaves
None of these
Sporophyte of Funaria is
semi-parasite
total parasite
saprophyte
symbiotic
In which of the following groups would you place a plant which produces spores and embryos but lacks seeds and vascular tissues ?
Fungi
Pteridophytes
Bryophytes
Gymnosperms
Which of the following is a bryophyte ?
Peat moss
Irish moss
Reindeer moss
Club moss
Amphitheoum in Anthtceros gives rise to
theca
capsule
columella
sporogenous tissue
The only positive evidence of the aquatic ancestory of bryophytes is
thread like protonema
ciliated an therozoids
their green colour
some forms are still aquatic
The scales in Riccia are
multicelled and appendiculate
multicelled and ligulate
unicelied and appendiculate
unicelied and ligulate
The air cavities in the capsule of moss are partitioned with delicate strands of cells. These are called
septa
trabeculae
partitions
compartments
Gametophyte produced due to apospory will be
diploid
haploid
polypoid
aneuploid
Conductive tissue in moss is composed of
coUenchyma
sderenchyma
parenchyma
all of these
The unique feature of bryophytes is that
they produce spores
they lack vascular tissues
they lack roots
they have sporophyte attached to the gametophyte
Sphagnum is popularly known as
peat moss
bog moss
both (a) and (b)
none of these
In Funaria, the male and female reproductive organs are borne on
different plants
different branches of different plants
same branch of same plant
different branches of same plant
Riccia is a liver wort because
it is found in the liver of vertebrate
ir produces liver diseae
it is liver shaped in structure
it is of the same colour, as that mammalian liver
The phenomenon of apogamy in bryophytes serves to
lengthen the short life-cycle
shorten the life-cycle
tide over unfavourable conditions
none of these
Annulus is moss capsule separates
operculum and columella
theca and columella
operculum and theca
columella and apophysis
Sterile jacket around the sex organs is found in
algae
lichens
fungi
bryophytes and pteridophytes
Elaters of Mardmntia are
haploid
triploid
diploid
tetraploid
A moss differs from fern in having
alternation of generation
swimming sperms
a dependent sporophyte
an independent gametophyte
Protonemal phase is represented as juvenile phase in
Riccia
Funaria
All mosses
All liver worts
Bryophyta acts as a connecting link between
thallophyta and ptcridophyta
algae and fungi
pteridophyta and gymnosperms
terrestrial fungi and aquatic fungi
The gametophyte of Funaria is :
dioecious
monoecious
monoecious and dioecious
heterothallic