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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.
Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :
Assertion : Cycas, roots are called coralloid roots.
Reason : Their pinnate compound leaves persist for few years.
  • a)
    Both A and R are true, and R is the correct explanation of A.
  • b)
    Both A and R are true, but R is not the correct explanation of A.
  • c)
    A is true but R is false.
  • d)
    A is false but R is true.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The gymnosperms are a group of seed-producing plants that includes con...
Cycas, roots are associated with nitrogen-fixing cyanobacteria which are called coralloid roots. Cycas have xerophytic adaptations, to avoid excessive transpiration the pinnate compound leaves in Cycas persist only for few years (3-10 years)
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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.Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :Assertion : Cycas, roots are called coralloid roots.Reason : Their pinnate compound leaves persist for few years.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'B'. 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.Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :Assertion : Cycas, roots are called coralloid roots.Reason : Their pinnate compound leaves persist for few years.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'B'. 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.Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :Assertion : Cycas, roots are called coralloid roots.Reason : Their pinnate compound leaves persist for few years.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'B'. 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.Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :Assertion : Cycas, roots are called coralloid roots.Reason : Their pinnate compound leaves persist for few years.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'B'. 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.Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :Assertion : Cycas, roots are called coralloid roots.Reason : Their pinnate compound leaves persist for few years.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
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.Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :Assertion : Cycas, roots are called coralloid roots.Reason : Their pinnate compound leaves persist for few years.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'B'. 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.Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :Assertion : Cycas, roots are called coralloid roots.Reason : Their pinnate compound leaves persist for few years.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'B'. 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.Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :Assertion : Cycas, roots are called coralloid roots.Reason : Their pinnate compound leaves persist for few years.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'B'. 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.Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :Assertion : Cycas, roots are called coralloid roots.Reason : Their pinnate compound leaves persist for few years.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'B'. 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.Direction : In the above questions the Assertions (A) and reasons (r) have been put forward. read both the statements and choose the correct option from the following :Assertion : Cycas, roots are called coralloid roots.Reason : Their pinnate compound leaves persist for few years.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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