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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.
Q. Plants which produce spores and embryo but lack vascular tissue and seeds are
- a)Bryophytes
- b)Pteridophytes
- c)Gymnosperm
- d)Algae
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Gametophyte is a dominant phase in the life cycle of a bryophyte. It ...
Understanding Bryophytes
Bryophytes are an important group of plants characterized by their unique life cycle and structure. Here’s why they are the correct answer to the question regarding plants that produce spores and embryos but lack vascular tissue and seeds.
Characteristics of Bryophytes
- Non-Vascular: Bryophytes do not have xylem and phloem, which are the vascular tissues found in higher plants. This absence makes them dependent on water for nutrient transport and reproduction.
- Reproductive Structures: They produce spores through a process called sporogenesis. The spores are haploid and can develop into a new gametophyte.
- Gametophyte Dominance: In bryophytes, the gametophyte phase is the dominant stage of the life cycle, which is conspicuous and independent, unlike the sporophyte phase that is typically short-lived and dependent on the gametophyte for nutrition.
Comparison with Other Plant Groups
- Pteridophytes: These plants (like ferns) have vascular tissues and produce spores but can also develop seeds in some cases. They are not classified as non-vascular.
- Gymnosperms: Gymnosperms are seed-producing plants that have vascular tissues. They do not fit the criteria of lacking seeds.
- Algae: While algae can produce spores, they are not classified as vascular plants and do not form true embryos like bryophytes.
Conclusion
Given these characteristics, bryophytes are indeed the correct answer. They are unique in their lack of vascular tissue and seeds while still being capable of producing spores and embryos. This makes them an essential part of plant evolution and ecology.
Bryophytes are an important group of plants characterized by their unique life cycle and structure. Here’s why they are the correct answer to the question regarding plants that produce spores and embryos but lack vascular tissue and seeds.
Characteristics of Bryophytes
- Non-Vascular: Bryophytes do not have xylem and phloem, which are the vascular tissues found in higher plants. This absence makes them dependent on water for nutrient transport and reproduction.
- Reproductive Structures: They produce spores through a process called sporogenesis. The spores are haploid and can develop into a new gametophyte.
- Gametophyte Dominance: In bryophytes, the gametophyte phase is the dominant stage of the life cycle, which is conspicuous and independent, unlike the sporophyte phase that is typically short-lived and dependent on the gametophyte for nutrition.
Comparison with Other Plant Groups
- Pteridophytes: These plants (like ferns) have vascular tissues and produce spores but can also develop seeds in some cases. They are not classified as non-vascular.
- Gymnosperms: Gymnosperms are seed-producing plants that have vascular tissues. They do not fit the criteria of lacking seeds.
- Algae: While algae can produce spores, they are not classified as vascular plants and do not form true embryos like bryophytes.
Conclusion
Given these characteristics, bryophytes are indeed the correct answer. They are unique in their lack of vascular tissue and seeds while still being capable of producing spores and embryos. This makes them an essential part of plant evolution and ecology.
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Gametophyte is a dominant phase in the life cycle of a bryophyte. It ...
Bryophytes are nonvascular embryophytes.
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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.Q. Plants which produce spores and embryo but lack vascular tissue and seeds area)Bryophytesb)Pteridophytesc)Gymnospermd)AlgaeCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about 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 area)Bryophytesb)Pteridophytesc)Gymnospermd)AlgaeCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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 area)Bryophytesb)Pteridophytesc)Gymnospermd)AlgaeCorrect answer is option 'A'. Can you explain this answer?.
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 area)Bryophytesb)Pteridophytesc)Gymnospermd)AlgaeCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about 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 area)Bryophytesb)Pteridophytesc)Gymnospermd)AlgaeCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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 area)Bryophytesb)Pteridophytesc)Gymnospermd)AlgaeCorrect answer is option 'A'. Can you explain this answer?.
Solutions for 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 area)Bryophytesb)Pteridophytesc)Gymnospermd)AlgaeCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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ample number of questions to practice 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 area)Bryophytesb)Pteridophytesc)Gymnospermd)AlgaeCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice NEET tests.
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