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    Structural Organisation in Plants and Animals - NEET Biology Previous Year Questions (2021-2025)

    Structural Organisation in Plants and Animals - NEET Biology Previous Year Questions (2021-2025)

    Irshad AnwarUpdated on 20 Feb 2026, 01:04 PM IST

    Structural Organisation in Plants and Animals is an important unit in NEET 2026 Biology. It explains how tissues, organs, and organ systems are arranged in living organisms. This unit helps students understand the relationship between structure and function in both plants and animals. A strong conceptual understanding of this topic improves accuracy in diagram-based and direct factual questions.

    This Story also Contains

    1. Structural Organisation in Plants and Animals NEET Weightage
    2. Chapters and Important Topics of Structural Organisation in Plants and Animals for NEET 2026
    3. Structural Organisation in Plants and Animals NEET PYQ PDF
    4. Structural Organisation in Plants and Animals: Important Questions for NEET 2026
    5. Preparation Tips to Score High in Structural Organisation in Plants and Animals for NEET 2026
    Structural Organisation in Plants and Animals - NEET Biology Previous Year Questions (2021-2025)
    Structural Organisation in Plants and Animals - NEET Biology Previous Year Questions (2021-2025)

    According to the structural organisation in plants and animals NEET previous year questions (PYQ) analysis, around 7–8 questions are asked from this unit every year, with nearly 50 questions appearing in the last five years combined. The unit includes three major chapters - Morphology of Flowering Plants, Anatomy of Flowering Plants, and Structural Organisation in Animals. These chapters frequently contribute to scoring questions in the NEET exam, making them essential for building a strong foundation and securing high marks in Biology.

    Structural Organisation in Plants and Animals NEET Weightage

    This unit usually contributes 7- 8 questions every year in the NEET Biology section. Questions are often direct or fact-based, making this chapter highly scoring with proper practice. Aspirants can check the top 100 questions in NEET Biology to score 330+ marks for further analysis and NEET 2026 preparation.

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    Chapters


    20212022202320242025

    Morphology of Flowering Plants

    4

    1

    3

    5

    3

    Anatomy of Flowering Plants

    3

    3

    3

    4

    2

    Structural Organisation in Animals

    5

    4

    5

    2

    3

    Chapters and Important Topics of Structural Organisation in Plants and Animals for NEET 2026

    Understanding all three chapters under this unit is important for scoring full marks in NEET Biology, as questions often come directly from key concepts, diagrams, and structural differences. The table below summarises each chapter with its most important topics for quick revision.

    Chapter Name


    Key Topics


    Morphology of Flowering Plants

    • Root, stem, leaf morphology

    • Modifications of roots, stems, and leaves

    • Types of inflorescence

    • Flower structure, aestivation, placentation

    • Fruit and seed types

    • Floral formula and floral diagrams

    Anatomy of Flowering Plants

    • Meristematic and permanent tissues

    • Simple tissues: parenchyma, collenchyma, sclerenchyma

    • Complex tissues: xylem, phloem

    • Dicot and monocot root, stem, and leaf anatomy

    • Secondary growth and cambium activity

    Structural Organisation in Animals

    • Animal tissues

    • Morphology, anatomy and functions of different systems (digestive, circulatory, respiratory, nervous and reproductive) of an insect (Frog)

    Structural Organisation in Plants and Animals NEET PYQ PDF

    Students preparing for NEET 2026 can use the structural organisation in plants and animals PYQ PDF to practice past exam questions, understand recurring concepts, and strengthen their accuracy through chapter-wise solved questions.

    Structural Organisation in Plants and Animals NEET PYQ

    Download PDF

    Structural Organisation in Plants and Animals: Important Questions for NEET 2026

    Ques:1 In the frog, the Renal portal system is a special venous connection that acts to link:

    Option 1) Kidney and the lower part of the body

    Option 2) Liver and intestine

    Option 3) Liver and kidney

    Option 4) Kidney and intestine

    Correct Answer: Kidney and the lower part of the body

    Explanation: In frogs, the renal portal system carries blood from the hindlimbs and other posterior regions to the kidneys before it returns to the heart. This allows partial filtering of blood and direct removal of nitrogenous waste, helping with efficient excretion and osmoregulation - an important adaptation in amphibians and some reptiles.

    Ques: 2 Which of the following is an example of a zygomorphic flower?

    Option 1) Chilli

    Option 2) Petunia

    Option 3) Datura

    Option 4) Pea

    Correct Answer: Pea

    Explanation: Zygomorphic flowers are those exhibiting bilateral symmetry, so that they may be split into two similar halves along one plane only.

    • Chilli (Capsicum) possesses a regular or actinomorphic flower (radial symmetry) and not a zygomorphic.

    • Petunia and Datura also possess actinomorphic flowers, which are radially symmetrical.

    • Pea flowers (Pisum sativum) are zygomorphic as they possess bilateral symmetry, meaning that they can be divided into symmetrical halves by a single plane.

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    Ques: 3 Axile placentation is observed in

    Option 1) Mustard, Cucumber and Primrose

    Option 2) China rose, Beans and Lupin

    Option 3) Tomato, Dianthus and Pea

    Option 4) China rose, Petunia and Lemonin

    Correct Answer: China rose, Petunia and Lemonin

    Explanation: Axile placentation is when ovules are attached to the central axis of a multilocular (multi-chambered) ovary. Among the options, China rose, Petunia, and Lemon show axile placentation. The other plants listed have different placentation types and do not specifically exhibit axile placentation.

    NEET Syllabus: Subjects & Chapters
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    Preparation Tips to Score High in Structural Organisation in Plants and Animals for NEET 2026

    Preparing effectively for this unit can improve your NEET 2026 Biology score, especially since many questions are direct and diagram-based.

    • Use diagrams regularly to understand and remember structural details.

    • Practice NEET previous years' questions to identify common patterns.

    • Memorise key differences between tissues and anatomical features.

    • Revise secondary growth steps and related labelled diagrams.

    • Keep short revision notes for quick and efficient last-minute study.

    Frequently Asked Questions (FAQs)

    Q: How many questions are asked from Structural Organisation in Plants and Animals in NEET?
    A:

    On average, 7-8 questions are asked every year from this unit in NEET Biology. In the last five years, nearly 50 questions have been asked from Morphology, Anatomy, and Structural Organisation in Animals combined.

    Q: Is Structural Organisation in Plants and Animals important for NEET 2026?
    A:

    Yes, this unit is highly important for NEET 2026. Most questions are direct, NCERT-based, and diagram-oriented, making it a high-scoring topic with proper revision and practice.

    Q: How should I prepare Structural Organisation in Plants and Animals for NEET?
    A:

    Focus on NCERT line-by-line reading, practice labelled diagrams, and solve previous year questions regularly. Pay special attention to root and stem modifications, tissues, placentation, and frog anatomy.

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