Plant Growth and Development NEET PYQs

Download Plant Growth and Development NEET PYQ PDF

The Plant Growth and Development NEET PYQ PDF is a valuable study resource for aspirants preparing for NEET 2027. It includes previous year questions covering important topics such as plant hormones, seed dormancy, photoperiodism, apical dominance, parthenocarpy, senescence, and other key NCERT concepts. Practising these NEET Biology MCQs helps students identify frequently asked topics, strengthen conceptual understanding, and improve accuracy. The PDF also supports quick revision with detailed solutions, making it an effective resource for NEET 2027 preparation.

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

Based on the analysis of NEET 2021–2026 Biology Question Paper, Plant Growth and Development consistently contributes 1–2 questions in the exam, making it a reliable scoring chapter for NEET 2027. Most questions are direct, NCERT-based, and test concepts related to plant hormones, growth phases, photoperiodism, seed dormancy, and plant growth regulators. Regular practice of NEET previous year questions helps students understand the latest exam trends and improve conceptual accuracy.

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

Revising the Plant Growth and Development chapter according to the NEET 2026 exam pattern helps aspirants improve speed, accuracy, and confidence. Since this chapter contributes 1-2 questions every year, solving Biology MCQs regularly gives familiarity with high-yielding topics of plant growth and development plant physiology chapter.

• Revise the NCERT thoroughly with a focus on important biology diagrams

• Practice the biology NEET question paper for accuracy

• Memorise plant hormone functions with flashcards, as these are repeated concepts asked in PYQs

• Solve the NEET mock test under strict timed exam conditions to actively recall important concepts.

• Revise the arithmetic and geometric growth in plants definitions, formulas, and NCERT examples.

• Strengthen differentiation, dedifferentiation, and redifferentiation basics