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 09 Jan 2026, 02:15 PM IST

Structural Organisation in Plants and Animals is an important unit in NEET 2026 Biology that explains how tissues, organs and organ systems are arranged in living organisms. It helps students understand how structural features support function and coordination in both plants and animals. Based on the structural organisation in plants and animals NEET PYQ analysis around 50 questions are asked from this unit in the past 5 years.

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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)

This unit includes three major chapters: morphology of flowering plants, anatomy of flowering plants, and structural organisation in animals. Each chapter provides important concepts that appear frequently in the NEET exam and helps learners build a strong foundation in biology. These chapters also strengthen diagram-based understanding, which is important for scoring well in NEET 2026 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
Select your preferred subject to view the chapters

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.

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