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The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.
Q. Gymnosperms are
- a)Hydrophytic
- b)Halophytic
- c)Xerophytic
- d)Both (A) and (B)
Correct answer is option 'C'. Can you explain this answer?
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The gymnosperms are a group of seed-producing plants that includes co...
Gymnosperm are xerophytes. They grow in hilly regions, where rocky soil has very less or no water holding capacity so have thick bark, thick cuticle, needle-like leaves, sunken stomata, etc. These are the adaptations to combat water stress in air and colder regions.
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The gymnosperms are a group of seed-producing plants that includes co...
Gymnosperms are Xerophytic Plants
Gymnosperms, a group of seed-producing plants, are classified as xerophytic plants. Xerophytes are plants that are adapted to survive in arid or dry environments with low water availability. Gymnosperms have several characteristics that enable them to thrive in xerophytic conditions.
1. Morphological Adaptations:
- Needle-like leaves: Many gymnosperms have needle-like leaves with a thick cuticle and sunken stomata. These adaptations help reduce water loss through transpiration.
- Compact cones: The seeds of gymnosperms are produced in cones, which protect the seeds from desiccation. The cones are usually compact, reducing the exposed surface area and minimizing water loss.
2. Physiological Adaptations:
- Mycorrhizal associations: Some genera of gymnosperms have roots that form associations with fungi in the form of mycorrhiza. This symbiotic relationship enhances nutrient uptake, including water, from the soil.
- Nitrogen-fixing associations: In some other genera, gymnosperm roots are associated with nitrogen-fixing microorganisms. This enables them to obtain essential nutrients, including nitrogen, which may be limited in xerophytic environments.
3. Reproductive Adaptations:
- Naked ovules and seeds: Gymnosperms have naked ovules without any covering, which remain exposed. Similarly, the seeds that develop after fertilization are also naked. This adaptation reduces the need for water-dependent structures for reproduction.
- Heterospory: Gymnosperms are heterosporous, meaning they produce two types of spores - microspores and megaspores. This reproductive strategy allows them to produce male and female gametophytes separately, reducing water dependence.
Overall, the morphological, physiological, and reproductive adaptations of gymnosperms make them well-suited for xerophytic environments. These adaptations help them conserve water, obtain essential nutrients, and reproduce without relying heavily on water availability. Therefore, gymnosperms are classified as xerophytic plants.
Gymnosperms, a group of seed-producing plants, are classified as xerophytic plants. Xerophytes are plants that are adapted to survive in arid or dry environments with low water availability. Gymnosperms have several characteristics that enable them to thrive in xerophytic conditions.
1. Morphological Adaptations:
- Needle-like leaves: Many gymnosperms have needle-like leaves with a thick cuticle and sunken stomata. These adaptations help reduce water loss through transpiration.
- Compact cones: The seeds of gymnosperms are produced in cones, which protect the seeds from desiccation. The cones are usually compact, reducing the exposed surface area and minimizing water loss.
2. Physiological Adaptations:
- Mycorrhizal associations: Some genera of gymnosperms have roots that form associations with fungi in the form of mycorrhiza. This symbiotic relationship enhances nutrient uptake, including water, from the soil.
- Nitrogen-fixing associations: In some other genera, gymnosperm roots are associated with nitrogen-fixing microorganisms. This enables them to obtain essential nutrients, including nitrogen, which may be limited in xerophytic environments.
3. Reproductive Adaptations:
- Naked ovules and seeds: Gymnosperms have naked ovules without any covering, which remain exposed. Similarly, the seeds that develop after fertilization are also naked. This adaptation reduces the need for water-dependent structures for reproduction.
- Heterospory: Gymnosperms are heterosporous, meaning they produce two types of spores - microspores and megaspores. This reproductive strategy allows them to produce male and female gametophytes separately, reducing water dependence.
Overall, the morphological, physiological, and reproductive adaptations of gymnosperms make them well-suited for xerophytic environments. These adaptations help them conserve water, obtain essential nutrients, and reproduce without relying heavily on water availability. Therefore, gymnosperms are classified as xerophytic plants.
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The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer?
Question Description
The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer?.
The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer?.
Solutions for The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Here you can find the meaning of The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer?, a detailed solution for The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Gymnosperms are either shrub or tree. In some genera, roots are in association with fungi in the form of mycorrhiza. In some other genera of gymnosperms, roots are associated with nitrogen-fixing. In gymnosperms ovules are naked without any covering and hence remain exposed. The seeds, which develop after fertilization, are also naked. The seeds develop either on the surface of scales or leaves, which are often modified to form cones The leaves may be simple or compound. Some has pinnately compound leaves or needlelike leaves with thick cuticle and sunken stomata. The gymnosperms are heterosporous. Sporangia are formed on sporophylls which are arranged spirally along an axis to form compact strobili or cones.Q. Gymnosperms area)Hydrophyticb)Halophyticc)Xerophyticd)Both (A) and (B)Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice NEET tests.
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