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Plant Classification

The document defines a cotyledon as the first leaf that appears from a seed during growth and classifies plants into flowering (angiosperms) and non-flowering types. It further distinguishes flowering plants into monocots, which have one cotyledon, and dicots, which have two, highlighting key differences in their features such as leaf venation and root types. The document also includes examples of each type and concludes with homework assignments related to the classification.

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thebritishschoolshergarh
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149 views1 page

Plant Classification

The document defines a cotyledon as the first leaf that appears from a seed during growth and classifies plants into flowering (angiosperms) and non-flowering types. It further distinguishes flowering plants into monocots, which have one cotyledon, and dicots, which have two, highlighting key differences in their features such as leaf venation and root types. The document also includes examples of each type and concludes with homework assignments related to the classification.

Uploaded by

thebritishschoolshergarh
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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Objectives 🔹 What is a Cotyledon?

 Define what a plant is. Definition: A cotyledon is the first leaf (or one of
 Understand how plants are classified based the first leaves) that appears from a seed when it
on flowers (flowering vs non-flowering). starts to grow.
 Learn classification based on cotyledons
(monocot vs dicot). Flowering plants (angiosperms) are classified into:
 Compare the characteristics of monocots
and dicots.  Monocots (one cotyledon)
 Dicots (two cotyledons)
1. What is a Plant? (5 mins)
4. Monocot vs Dicot – Comparison Table
🔹 Definition: (with explanation) (6 mins)

A plant is a living organism that grows in the Feature Monocots Dicots


earth and typically has roots, a stem, leaves, and Cotyledons One cotyledon Two cotyledons
can make its own food through photosynthesis. Leaf Network
Parallel veins
Venation (reticulate) veins
🔹 Key Features of Plants:
In multiples of In multiples of 4 or
Flower Parts
3 5
 Made up of cells
 Use sunlight to make food Root Type Fibrous roots Taproot system
(photosynthesis) Vascular Scattered in
Arranged in a ring
 Have roots, stems, and leaves Bundle stem
 Cannot move from place to place Grass, Corn, Mango, Rose,
Examples
 Reproduce through seeds or spores Rice, Lily Sunflower, Beans

🪴 Examples: 🔹 Explanation of Key Differences:

 Trees, grasses, flowers, mosses, ferns  Cotyledon: Acts as food storage for the
growing plant.
2. Classification Based on Flowers (7  Leaf venation: Monocots = straight lines;
mins) Dicots = branching veins.
 Roots: Monocots = many small roots;
🔹 1. Flowering Plants (Angiosperms): Dicots = one main thick root.
 🔁 Recap Points:
 Produce flowers for reproduction
 Have seeds enclosed in fruits  Plants are classified by whether they have
 Most common type of plants flowers and how many cotyledons their
seeds contain.
Examples: Rose, Mango, Sunflower  Monocots and dicots differ in leaf pattern,
flower parts, and root structure.
🔹 2. Non-Flowering Plants:
🏠 Homework:
 Do not produce flowers
 Reproduce using spores or other methods  Draw two labeled diagrams: one monocot
 Simpler than flowering plants plant and one dicot plant.
 Identify 3 monocots and 3 dicots from
Examples: Ferns, Mosses, Algae, Pine trees your surroundings.
(gymnosperms)

3. Classification Based on Cotyledons (10


mins)

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