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Gametophyte in the pteridophytes
(i) Small, inconspicuous.
(ii) unicellular.
(iii) Mostly photosynthetic thalloid
(iv) need water for fertilisation
How many statements are correct with respect to gametophyte?
  • a)
     Two 
  • b)
    Three
  • c)
    Four 
  • d)
    One
Correct answer is option 'B'. Can you explain this answer?
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Gametophyte in the pteridophytes(i) Small, inconspicuous.(ii) unicellu...
Understanding Gametophytes in Pteridophytes
The gametophyte generation in pteridophytes, which includes ferns and their relatives, plays a crucial role in their life cycle. Let's analyze the statements regarding the gametophyte:
i) Small, inconspicuous
- This statement is correct.
- Gametophytes in pteridophytes are typically small and often overlooked, as they are much less conspicuous than the sporophyte generation.
ii) Unicellular
- This statement is incorrect.
- Gametophytes are generally multicellular structures, despite being small.
iii) Mostly photosynthetic thalloid
- This statement is correct.
- The gametophytes of many pteridophytes are thalloid and capable of photosynthesis, allowing them to sustain themselves and contribute to the ecosystem.
iv) Need water for fertilisation
- This statement is correct.
- Pteridophyte gametophytes require a moist environment for sperm to swim to the egg for fertilization, which is a characteristic of their reproductive cycle.
Summary of Correct Statements
- Based on the analysis:
- Statements i, iii, and iv are correct, making a total of three correct statements.
Thus, the correct answer to the question is option 'B', which states that three statements about the gametophytes in pteridophytes are accurate.
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Community Answer
Gametophyte in the pteridophytes(i) Small, inconspicuous.(ii) unicellu...
The correct answer is B: Three.
 The spores germinate to give rise to inconspicuous, small but multicellular, free-living, mostly photosynthetic thalloid gametophytes called prothallus. These gametophytes require cool, damp, shady places to grow. Because of this specific restricted requirement and the need for water for fertilisation, the spread of living pteridophytes is limited and restricted to narrow geographical regions.

Therefore, three statements are correct regarding the gametophyte in pteridophytes.
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Gametophyte is a dominant phase in the life cycle of a bryophyte. It is more conspicuous, long living, independent, green and freely branched whereas, the sporophytic phase is short lived and dependent upon the gametophyte. The main plant body is haploid and bears sex organs i.e., antheridium and archegonium. Antheridium produces a large number of flagellated male gametes called antherozoids and archegonium is flask shaped with tubular neck and swollen venter. The gametophytic plant body of bryophytes is thalloid in liverworts whereas foliose in mosses. In liverworts, the thallus is differentiated into a dorsal photosynthetic and ventral storage region. In mosses, the gametophyte has two growth stages- protonema stage and leafy stage or gametophore.Direction : In the following questions the Assertions (

Gametophyte is a dominant phase in the life cycle of a bryophyte. It is more conspicuous, long living, independent, green and freely branched whereas, the sporophytic phase is short lived and dependent upon the gametophyte. The main plant body is haploid and bears sex organs i.e., antheridium and archegonium. Antheridium produces a large number of flagellated male gametes called antherozoids and archegonium is flask shaped with tubular neck and swollen venter. The gametophytic plant body of bryophytes is thalloid in liverworts whereas foliose in mosses. In liverworts, the thallus is differentiated into a dorsal photosynthetic and ventral storage region. In mosses, the gametophyte has two growth stages- protonema stage and leafy stage or gametophore.Q. Plants which produce spores and embryo but lack vascular tissue and seeds are

Gametophyte is a dominant phase in the life cycle of a bryophyte. It is more conspicuous, long living, independent, green and freely branched whereas, the sporophytic phase is short lived and dependent upon the gametophyte. The main plant body is haploid and bears sex organs i.e., antheridium and archegonium. Antheridium produces a large number of flagellated male gametes called antherozoids and archegonium is flask shaped with tubular neck and swollen venter. The gametophytic plant body of bryophytes is thalloid in liverworts whereas foliose in mosses. In liverworts, the thallus is differentiated into a dorsal photosynthetic and ventral storage region. In mosses, the gametophyte has two growth stages- protonema stage and leafy stage or gametophore.Q. Bryophytes require water in their habitat for

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