267359
In bryophytes, male and female sex organs are called and respectively.
1 microsporangia; macrosporangia
2 male strobili; female strobili
3 antheridia; archegonia
4 androecium; gynoecium
Explanation:
(c) In bryophytes, sex organs are of two types, male antheridium and female archegonium. They are multicellular and jacketed, i.e., covered by jacket of sterile cells.
NCERT Page-35 / N-29
Plant kingdom
267360
Protonema and leafy stage are the predominant stage of the life cycle of
1 moss
2 dicots
3 liverwort
4 gymnosperm
Explanation:
(a) The predominant stage of the moss is the presence of gametophyte which consists of two stages - the first stage is protonema and the second stage is leafy stage. Protonema stage develops directly from the spores and leafy stage develops from the secondary protonema as a lateral bud.
NCERT Page-36 / N-30
Plant kingdom
267361
Which of the following statement(s) is/are correct about mosses?
1 The predominant stage of its life cycle is the gametophyte which consists of two stages protonema and leafy stages.
2 Leafy stage are attached to the soil through multicellular and branched rhizoids.
3 Sex organs-antheridia and archegonia are produced at the apex of the leafy shoots.
267359
In bryophytes, male and female sex organs are called and respectively.
1 microsporangia; macrosporangia
2 male strobili; female strobili
3 antheridia; archegonia
4 androecium; gynoecium
Explanation:
(c) In bryophytes, sex organs are of two types, male antheridium and female archegonium. They are multicellular and jacketed, i.e., covered by jacket of sterile cells.
NCERT Page-35 / N-29
Plant kingdom
267360
Protonema and leafy stage are the predominant stage of the life cycle of
1 moss
2 dicots
3 liverwort
4 gymnosperm
Explanation:
(a) The predominant stage of the moss is the presence of gametophyte which consists of two stages - the first stage is protonema and the second stage is leafy stage. Protonema stage develops directly from the spores and leafy stage develops from the secondary protonema as a lateral bud.
NCERT Page-36 / N-30
Plant kingdom
267361
Which of the following statement(s) is/are correct about mosses?
1 The predominant stage of its life cycle is the gametophyte which consists of two stages protonema and leafy stages.
2 Leafy stage are attached to the soil through multicellular and branched rhizoids.
3 Sex organs-antheridia and archegonia are produced at the apex of the leafy shoots.
267359
In bryophytes, male and female sex organs are called and respectively.
1 microsporangia; macrosporangia
2 male strobili; female strobili
3 antheridia; archegonia
4 androecium; gynoecium
Explanation:
(c) In bryophytes, sex organs are of two types, male antheridium and female archegonium. They are multicellular and jacketed, i.e., covered by jacket of sterile cells.
NCERT Page-35 / N-29
Plant kingdom
267360
Protonema and leafy stage are the predominant stage of the life cycle of
1 moss
2 dicots
3 liverwort
4 gymnosperm
Explanation:
(a) The predominant stage of the moss is the presence of gametophyte which consists of two stages - the first stage is protonema and the second stage is leafy stage. Protonema stage develops directly from the spores and leafy stage develops from the secondary protonema as a lateral bud.
NCERT Page-36 / N-30
Plant kingdom
267361
Which of the following statement(s) is/are correct about mosses?
1 The predominant stage of its life cycle is the gametophyte which consists of two stages protonema and leafy stages.
2 Leafy stage are attached to the soil through multicellular and branched rhizoids.
3 Sex organs-antheridia and archegonia are produced at the apex of the leafy shoots.
