Archegoniophore is present in
(1) Chara
(2) Adiantum
(3) Funaria
(4) Marchantia
Examine the figure given below and select the right option giving all the four parts (A, B, C and D) correctly identified:
A | B | C | D | |
1. | Antheridiophore | Male thallus | Globule | Roots |
2. | Archegoniophore | Female thallus | Gemma cup | Rhizoids |
3. | Archegoniophore | Female thallus | Bud | Foot |
4. | Seta | Sporophyte | Protonema | Rhizoids |
Consider the following statements regarding bryophytes:
I. Bryophytes are also called amphibians of the plant kingdom because they are dependent on water for sexual reproduction.
II. They play an important role in plant succession on bare rocks.
III. They lack true roots, stem or leaves.
IV. The sex organs in bryophytes are multicelluar.
V. They produce biflagellate zoospres.
VI. Archegonium is flask-shaped and produces a single egg.
The number of corrected statements is
1. 3
2. 4
3. 5
4. 6
Which of the following is responsible for peat formation?
(1) Marchantia
(2) Riccia
(3) Funaria
(4) Sphagnum
Male and female gametophytes are independent and free-living in
(1) mustard
(2) castor
(3) Pinus
(4) Sphagnum
In a moss, the sporophyte:
(1) is partially parasitic on the gametophyte
(2) produces gametes that give rise to the gametophyte
(3) arises from a spore produced from the gametophyte
(4) manufactures food for itself, as well as for the gametophyte
Read the following statements reagrding bryophytes and choose the incorrect option.
(1) Gametophytic phase is dominant in life cycle
(2) Fertilisation takes place in presence of water
(3) Zygote undergoes meiosis to produce sporophyte
(4) Sporophyte isphysiologically dependent on gametophyte
Gametophyte of Bryophyte is
1. Green and vascular.
2. Independent, multicellular.
3. Dependent on sporophyte.
4. Foliose in nature.
Which of the following statement is incorrect regarding bryophytes?
1. They are dependent on water for sexual reproduction.
2. The main plat body is diploid
3. They usually occur in damp, humid and shaded localities.
4. They play an important role in plant succession on bare rocks.
Sporophyte in bryophytes is
1. Parasitic on gametophyte
2. Formed by germination of meiospore
3. Specialized to produce gametes
4. Haploid phase