Anatomy of Flowering Plants – NEET 2025 Quick Revision with Diagrams

-




Post Content:

Introduction:
"Anatomy of Flowering Plants" is a high-yield NEET chapter. It covers internal structure and tissue systems. NCERT lines are directly asked in NEET – so revise thoroughly with keywords and diagrams.

1. Plant Tissues

A. Meristematic Tissues

Apical Meristem – at shoot/root tips

Intercalary Meristem – at nodes (e.g., Grass)

Lateral Meristem – cambium, increases girth


B. Permanent Tissues

Simple:

Parenchyma (living, photosynthesis)

Collenchyma (support, thick at corners)

Sclerenchyma (dead, thickened walls)


Complex:

Xylem: Tracheids, vessels, xylem parenchyma

Phloem: Sieve tubes, companion cells, phloem parenchyma

2. Tissue Systems

Epidermal: Outer covering, with guard cells and trichomes

Ground: Parenchyma mostly, for photosynthesis/storage

Vascular: Xylem + Phloem in various arrangements


3. Anatomy of Dicot and Monocot Root

Dicot Root (Bean):

Xylem + Phloem alternate, fewer xylem bundles

Secondary growth present


Monocot Root (Maize):

More xylem bundles

Pith large, no secondary growth


4. Anatomy of Dicot and Monocot Stem

Dicot Stem:

Open vascular bundles in a ring (secondary growth possible)


Monocot Stem:

Scattered vascular bundles, closed type (no secondary growth)

5. Leaf Anatomy

Dorsiventral (Dicot):

Palisade + spongy mesophyll, veins reticulate


Isobilateral (Monocot):

Mesophyll undifferentiated, veins parallel

6. Secondary Growth (Only in Dicots)

Vascular Cambium: Produces secondary xylem/phloem

Cork Cambium (Phellogen): Produces bark

Annual rings seen in old dicot stems


NEET Key Diagram Practice:

T.S. of dicot/monocot root and stem

Vascular bundle arrangement

Secondary growth stages 



Important NCERT Line:

“Cambium is absent in monocots; hence, no secondary growth.”

Comments

Post a Comment

Popular posts from this blog

🌱 Plant Growth and Development: Role of Hormones in NEET & CBSE Biology

-
Image
Introduction Plant growth and development are crucial chapters in both NEET and CBSE Class 11 Biology. Understanding how plants grow and how hormones regulate this process is important not just for exams, but also for grasping key concepts in plant physiology. --- 🌿 What is Plant Growth? Growth in plants refers to an irreversible increase in size, usually accompanied by an increase in dry mass. It involves cell division (mitosis), cell elongation, and cell differentiation. Plant growth is indeterminate, meaning it continues throughout their life due to the presence of meristems (actively dividing tissues). --- 🔍 Phases of Growth 1. Meristematic Phase – cells are actively dividing. 2. Elongation Phase – cells elongate and expand in size. 3. Maturation Phase – cells differentiate and mature into specific tissues. --- 📈 Growth Curve Follows a sigmoid curve (S-shaped). Has four phases: 1. Lag Phase (slow growth), 2. Log Phase (rapid growth), 3. Declining Phase (slowdown), 4....
Read more

Celebrating Teacher’s Day 2025: Honoring the Architects of Knowledge

-
Image
The Origin of Teacher’s Day Teacher’s Day in India commemorates Dr. Sarvepalli Radhakrishnan, born on September 5, 1888. A philosopher, statesman, and the second President of India (1962–1967), Dr. Radhakrishnan believed education was the cornerstone of progress. When students and admirers suggested celebrating his birthday, he humbly proposed that the day be dedicated to honoring all teachers instead. Since 1962, September 5th has been celebrated as Teacher’s Day across the country, a tradition that continues to thrive. Why Teachers Matter Teachers are more than just educators—they are mentors, role models, and catalysts for change. On this Teacher’s Day, let’s reflect on their impact: Shaping Minds: They introduce students to new ideas, critical thinking, and problem-solving skills. Building Character: Beyond academics, teachers instill values like discipline, empathy, and resilience. Inspiring Futures: Many successful individuals credit a teacher for sparking...
Read more

NEET 2025 – Cell: The Unit of Life | NCERT-Based Notes + Diagrams

-
Image
Post Content: Introduction: "Cell: The Unit of Life" is a conceptual and factual chapter. NEET 2025 can include diagram-based MCQs and questions from cell organelles and types of cells. Focus on NCERT keywords and functions. 1. Discovery of Cell Discovered by Robert Hooke in 1665 (cork cell) Cell Theory by Schleiden & Schwann Rudolf Virchow: "Omnis cellula-e-cellula" – cells arise from pre-existing cells 2. Prokaryotic vs Eukaryotic Cells Feature Prokaryote (Bacteria) Eukaryote (Plants/Animals) Nucleus Absent Present Organelles No membrane-bound Membrane-bound Ribosome Type 70S 80S Cell Wall Peptidoglycan Cellulose (plants) 3. Cell Organelles Nucleus: Double membrane, contains nucleolus and chromatin Mitochondria: Powerhouse, double membrane, has its own DNA Plastids: Chloroplast: Green, photosynthesis, has DNA Endoplasmic Reticulum (ER): Rough ER: Protein synthesis Smooth ER: Lipid synthesis Golgi Apparatus: Modifies & packages proteins Lysosome...
Read more