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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 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.
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.
Chapters | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
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 |
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 |
|---|---|
| |
| |
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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 |
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.
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.
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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