Plant Growth and Development NEET PYQs

Download Plant Growth and Development NEET PYQ PDF

The Plant Growth and Development NEET PYQ PDF is one of the most significant resources that you must use while preparing for NEET 2027. The NEET previous year questions with solutions of the chapters that are included in the PDF will be helpful in improving your understanding of concepts from NCERT like plant hormones, growth regulators, photoperiodism, vernalization, dormancy, apical dominance, senescence, and growth curves. By solving these questions, you will get to know about the frequently asked concepts and improve your problem-solving skills.

Plant Growth and Development NEET PYQs Analysis (2021- 2026)

As per NEET 2021-2026 Biology Question Paper Analysis, "Plant Growth and Development" has been contributing 1-2 questions every time in the exam paper. So, we can say that this topic is definitely going to score marks for the NEET 2027 exam. This topic has been contributing mostly direct questions based on the NCERT syllabus, which are related to plant hormones, growth stages, photoperiodism, seed dormancy, and plant growth regulators.

Plant Growth and Development NEET Previous Year Questions (PYQs)

Practising Plant Growth and Development NEET Previous Year Questions helps students build a strong understanding of plant hormones, growth regulation, photoperiodism, and other important NCERT concepts. Solving these questions improves conceptual clarity, accuracy, and familiarity with the latest NEET question pattern.

Below are the latest Plant Growth and Development questions from the RE-NEET 2026 Biology Question Paper, along with detailed solutions to help you understand the correct approach and strengthen your preparation for NEET 2027.

Question 1

Phyllotaxy is the pattern of arrangement of ________.

A) Fruits

B) Sepals

C) Leaves

D) Flowers

Correct Option: C) Leaves

Explanation: Phyllotaxy refers to the arrangement of leaves on a stem or branch. It helps plants maximise light absorption and minimise shading. The three main types are alternate, opposite, and whorled.

Question 2

Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What is the length of the stem at the end of the 7th day?

A) 230 cm

B) 460 cm

C) 50 cm

D) 170 cm

Correct Option: A) 230 cm

Explanation: In arithmetic growth, the length increases by a constant amount each day.

Length = Initial length + (Growth rate × Time)

= 20 + (30 × 7)

= 230 cm

Question 3

Which of the following plant growth regulators promotes internode elongation prior to flowering in cabbage?

A) Indole butyric acid

B) Ethephon

C) Abscisic acid

D) Gibberellin

Correct Option: D) Gibberellin

Explanation: Gibberellins promote stem and internode elongation. In plants like cabbage, they stimulate bolting (rapid stem elongation) before flowering.

Question 4

Which of the following plant growth regulators is used as a herbicide?

A) Abscisic acid

B) Gibberellin

C) 2,4-D

D) Kinetin

Correct Option: C) 2,4-D

Explanation: 2,4-D (2,4-Dichlorophenoxyacetic acid) is a synthetic auxin widely used as a selective herbicide. It kills broad-leaved weeds without affecting most monocot crops like wheat and grasses.

Plant Growth and Development Weightage in NEET 2027

Plant Growth and Development is a low- to moderate-weightage chapter in NEET Biology, contributing around 1–2 questions in most exams. Despite its lower weightage, the questions are usually direct and based on NCERT, making it a scoring topic for NEET 2027.

Aspirants should focus on plant hormones, growth phases, photoperiodism, seed dormancy, and growth regulators, as these concepts have been tested repeatedly in previous years.

NEET 2027 Plant Growth and Development: High-Yield Topics

Plant Growth and Development NEET important questions are predictable and most scoring. Based on Biology NCERT and PYQ trends, topics like factors affecting plant growth, phases of growth in plants, arithmetic and geometric growth, differentiation, dedifferentiation, redifferentiation, plant development, and plant growth regulators are frequently asked questions from this chapter.

These Plant Growth & Development NEET PYQs often highlight direct NCERT lines, especially on hormone functions, photoperiodism vs vernalisation, and seed physiology. Practising these high‑yield topics provides clarity of plant physiology concepts and boosts exam confidence.

How to Revise Plant Growth and Development for NEET 2027

Preparation of the Plant Growth and Development chapter based on the NEET 2027 exam pattern can help candidates increase their speed and confidence level. As this topic holds one or two questions every year, practising Biology MCQs will give you familiarity with high-yielding topics of the plant growth and development plant physiology chapter.

• Thorough revision of the NCERT book with an emphasis on biology diagrams

• NEET biology question paper practice for accuracy

• Flashcard study for plant hormone functions because it is a repetitive concept that has been seen in PYQs

• Take NEET mock test under timed exam conditions and recall important concepts actively

• Arithmetic and Geometric Growth in Plants – Definitions, formulas, and NCERT examples

• Basics of differentiation, dedifferentiation, and redifferentiation.