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 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.

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 most scoring concepts, and strengthen their accuracy through chapter-wise biology MCQs with solutions.

High-Yield 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. Questions often come directly from these key concepts, important biology diagrams, and structural differences. The table below summarises each chapter with its most important topics for quick NEET 2026 revision.

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.

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.

Last‑Minute Revision Strategy for NEET 2026 Structural Organisation Chapter

Preparing effectively for this unit can improve your NEET 2026 Biology score, especially since many questions are direct and diagram-based, helpful for last-minute preparation. These revision strategy tips help to improve accuracy and gain confidence in this unit:

• Revise the NEET 2026 important 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 covering the most repeated NEET questions.

• Revise secondary growth steps and related labelled diagrams.

• Keep short revision notes for a quick and efficient NEET 20-day revision plan.