Question

Which division is known amphibian of plant kingdom?

Answer 1

$\huge\bold{Question:}$

Which division is known amphibian of plant kingdom ?

$\huge\bold{Answer:}$

$\large\bold\red{Bryophyta}$ (the second division of kingdom plantae)

Bryophytes are also called as the amphibians of the plant kingdom.

$\huge\bold{Extras:}$

• The plant body of bryophytes is gametophytic.

• Their plant body is either thallose and/or folliose. However, the real stem and leaves are always absent.

• Their plant body's fixation is carried out by rhizoids.

• Sporophyte is parasitic over the gametophytic plant body throughout its life.

• Bryophytes are non-vascular in nature.

• Their sex organs are multicellular.

• An embryo is formed upon fertilization.

$\large\bold{Examples:}$ Riccia, Marchantia, Anthoceros, Funaria, Barbula.

Answer 2

HEYA GM ❤

# AMPHIBIANS OF PLANT KINGDOM

# BRYOPHYTES

∆¥ CHARACTERISTICS......

@ They are first Land PLANTS

@ Bryophytes are not considered as the successful land plants BCOZ VASCULAR TISSUE IS ABSENT..

@ ROOTS are absent in them....

@@ WATER is required for Fertilization... So they are called AMPHIBIANS OF PLANT KINGDOM...

@ FERTILIZATION is Zoidogamy.... ((( Male Gamete reaches Female Gamete via WATER )))

¥∆ LIFE CYCLE......

★ Main plant body is GAMETOPHYTE...

★ Male Sex Organ is called ANTHERIDIUM... and Female sex organ is called ARCHEGONIUM....

★* As a result of fertilization, diploid zygote is formed.. This zygote initiates the SPOROPHYTIC GENERATION

★ And While Spore mother cell producers GAMETOPHYTIC GENERATION...

#∆ Classes.... ---- 3

1> LIVERWORTS/ HEPATOCOPSIDA

→Plant Body of this group is thallus like and dorsiventral. RHIZOIDS AND SCALES are present on thallus.

→→ THE SPOROPHYTE OF LIVERWORTS COMPLETELY DEPENDS UPON THE GAMETOPHYTE FOR FOOD WATER AND HABITAT.

EX. RICCIA, MARCHANTIA, ...

2> HORNWORTS / Anthocerotopsida

¥# THE SPOROPHYTE OF HORNWORTS IS NOT COMPLETELY DEPENDENT ON ITS GAMETOPHYTE. .. i.e. SEMI PARASITE

# Ex. Nothylus, Anthoceros...

3> Moss

♥ MOSSES ARE GREGARIOUS IN NATURE

♥ RHIZOIDS ARE MULTICELLULAR AND BRANCHED

♥ THE SPOROPHYTE OF MOSS IS DIVIDED INTO FOOT , SETA AND CAPSULE

♦ CAPSULE OF MOSS HAS GREEN CELLS FOR PHOTOSYNTHESIS AND STOMATA FOR GASEOUS EXCHANGE....

♣ IT ALSO HAS PERISTOMIAL TEETH FOR RELEASE OF SPORTS

e.x SPHAGNUM , FUNARIA , POLYTRICHIUM , .....

THANK YOU ❤