Plant Growth and Development Made Easy for NEET 2025 – Simple Tricks by Botany Sir Himansu

Hey NEET Champions 👋

Do you find Plant Growth and Development confusing?

So many hormones, stages, and terminologies — it can feel like a maze, right? 😅

But don’t worry! Aapka dost aur mentor, Botany Sir Himansu, yahan hai to simplify this entire chapter for you.

In this blog, we’ll break down Plant Growth and Development into easy steps, NCERT keywords, and smart tricks that will help you score full marks in NEET 2025. 🌿

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🌿 1️⃣ What is Growth in Plants?

In plants, growth = irreversible increase in size or mass.

Unlike animals, plants keep growing throughout their life because of their meristematic tissues — the dividing cells at shoot and root tips.

📘 NCERT Line: “Growth is measurable.”

👉 That means you can measure it by increase in length, area, volume, or number of cells.

🪴 Example: A bamboo plant can grow more than 1 meter in a day — cool, right?

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🌱 2️⃣ Phases of Growth – Easy to Remember Trick

There are three important phases you must memorize for NEET:

1. Lag Phase – Slow growth (plant adjusting to new conditions).

2. Log Phase – Rapid growth (maximum cell division).

3. Stationary Phase – Growth stops or becomes steady.

💡 Trick to Remember: “Lag → Log → Stop” = Slow → Fast → Constant

This same logic applies to microbial growth, too — perfect crossover for NEET!

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🌿 3️⃣ Conditions Affecting Growth

Plants grow best under specific conditions — and NEET loves these!

🧠 Factors:

Temperature (Optimum 25–30°C for most plants)

Light (Important for photoperiodism)

Water (For cell elongation)

Nutrients (Especially Nitrogen and Potassium)

📘 NCERT Tip: Plants under stress (too hot, too dry) show stunted growth.

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🌱 4️⃣ Plant Growth Regulators (PGRs) – The Hormone Heroes

These are the most important part of this chapter.

There are five main hormones, and NEET always asks 1–2 questions from this section.

Hormone Function Trick

Auxin Cell elongation, root initiation “Auxin = Axis growth”

Gibberellin (GA) Stem elongation, seed germination “Gibber = Grow tall”

Cytokinin Cell division, anti-aging “Cyto = Cell division”

ABA (Abscisic Acid) Inhibits growth, causes dormancy “ABA = Always Be Asleep” 😴

Ethylene Fruit ripening “Ethylene = Early ripening” 🍌

💬 Mnemonic: “A Good Cat Eats Apples” (Auxin, GA, Cytokinin, Ethylene, ABA)

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🌿 5️⃣ Photoperiodism and Vernalization (Smart NCERT Focus)

These topics are small but high-weightage.

🌞 Photoperiodism:

It’s the plant’s response to light duration — how long the day and night are.

Short-day plants: Rice, Dahlia 🌾

Long-day plants: Wheat, Lettuce 🌿

Day-neutral plants: Tomato 🍅

❄️ Vernalization:

Flowering induced by low temperature exposure.

Used in crops like wheat and barley in hilly regions.

👉 Trick: “Winter = Vernalization.”

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🌱 6️⃣ Differentiation, Dedifferentiation, Redifferentiation

This section confuses many students — let’s simplify it.

Term Meaning Example

Differentiation Cell develops a specific function Xylem, Phloem

Dedifferentiation Mature cell becomes meristematic again Cork cambium

Redifferentiation Dedifferentiated cell performs new function Secondary xylem

💡 Memory Trick:

De → Re → Function Change.

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🌿 7️⃣ Smart Revision Strategy

For NEET 2025, revise this chapter every Sunday morning like this:

1. Read all five hormones.

2. Watch Himansu Sir’s video for diagram recap.

3. Solve 15 MCQs.

🎯 Focus Areas for MCQs:

Hormone discovery scientists

Hormone effects

Vernalization and photoperiodism differences

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🌱 8️⃣ Final Words from Botany Sir Himansu

> “Plant Growth is not about memorization; it’s about feeling how a plant breathes, grows, and blooms.” 🌺

Keep your concepts alive and revise them like watering a plant daily.

Your consistency will grow your NEET score like sunlight grows a seed! 🌞

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🔗 Internal Links

Photosynthesis in Higher Plants – Full Notes

Plant Hormones Made Simple

NCERT Short Notes for NEET 2025