1️⃣ Introduction to Plant Morphology

Plant morphology is the study of the external structure of plants, including roots, stems, leaves, flowers, fruits, and seeds. It helps in understanding plant adaptations, classification, and physiological functions.

Why is Plant Morphology Important for NEET?


2️⃣ Root System in Plants

The root system is the underground part of a plant that provides support and absorbs water and nutrients.

Types of Roots

🔹 Taproot System – One main root grows downward with lateral branches (e.g., Mango, Pea).
🔹 Fibrous Root System – Many thin roots grow from the base of the stem (e.g., Wheat, Grass).
🔹 Adventitious Roots – Roots that grow from non-root parts like stems or leaves (e.g., Banyan, Maize).

Root Modifications

Storage Roots: Store food (e.g., Carrot, Radish).
Respiratory Roots: Help in gaseous exchange (e.g., Mangroves).
Prop Roots: Aerial roots for support (e.g., Banyan).

MCQs on Roots

1️⃣ Which type of root system is found in monocots?
a) Taproot
b) Fibrous root
c) Adventitious root
d) None of the above
Answer: b) Fibrous root

2️⃣ Which root modification helps in breathing in marshy areas?
a) Prop roots
b) Respiratory roots
c) Storage roots
d) Climbing roots
Answer: b) Respiratory roots


3️⃣ Stem Structure & Modifications

The stem is the aerial part of a plant that supports branches, leaves, flowers, and fruits.

Functions of the Stem

Types of Stems

🔹 Herbaceous Stem: Soft and green (e.g., Sunflower).
🔹 Woody Stem: Hard and brown (e.g., Mango tree).
🔹 Climbing Stem: Supports weak-stemmed plants (e.g., Money plant).

Stem Modifications

Rhizomes: Underground horizontal stems (e.g., Ginger).
Tubers: Swollen stems storing food (e.g., Potato).
Thorns: Modified stems for protection (e.g., Bougainvillea).

MCQs on Stems

3️⃣ Which of the following is an underground stem?
a) Carrot
b) Potato
c) Turnip
d) Radish
Answer: b) Potato

4️⃣ Which stem modification helps in climbing?
a) Rhizome
b) Thorn
c) Tendril
d) Tuber
Answer: c) Tendril


4️⃣ Leaf Morphology

Leaves are the main site for photosynthesis and transpiration.

Types of Leaves

🔹 Simple Leaf: Single leaf blade (e.g., Mango).
🔹 Compound Leaf: Multiple leaflets (e.g., Neem).

Phyllotaxy (Leaf Arrangement)

Alternate: Single leaf per node (e.g., Sunflower).
Opposite: Two leaves per node (e.g., Guava).
Whorled: More than two leaves per node (e.g., Alstonia).

Leaf Modifications

Tendrils: Climbing adaptation (e.g., Pea).
Spines: Reduce water loss (e.g., Cactus).
Succulent Leaves: Store water (e.g., Aloe Vera).

MCQs on Leaves

5️⃣ Which type of phyllotaxy is found in Sunflower?
a) Opposite
b) Whorled
c) Alternate
d) Compound
Answer: c) Alternate

6️⃣ What is the function of spines in a cactus?
a) Photosynthesis
b) Water storage
c) Protection & reducing water loss
d) Climbing
Answer: c) Protection & reducing water loss


5️⃣ Inflorescence & Flower Morphology

The inflorescence is the arrangement of flowers on a plant.

Types of Inflorescence

Racemose: Main axis continues to grow (e.g., Mustard).
Cymose: Main axis ends in a flower (e.g., Jasmine).

Parts of a Flower

🔹 Calyx: Outer sepals for protection.
🔹 Corolla: Inner petals for attracting pollinators.
🔹 Androecium: Male reproductive organ (stamens).
🔹 Gynoecium: Female reproductive organ (carpels).

Floral Symmetry

Actinomorphic: Radial symmetry (e.g., Mustard).
Zygomorphic: Bilateral symmetry (e.g., Pea).

MCQs on Flowers

7️⃣ Which part of the flower is responsible for reproduction?
a) Sepals
b) Petals
c) Androecium & Gynoecium
d) Receptacle
Answer: c) Androecium & Gynoecium

8️⃣ Which symmetry is found in Mustard flowers?
a) Actinomorphic
b) Zygomorphic
c) Bilateral
d) Irregular
Answer: a) Actinomorphic

6️⃣ The Fruit

A fruit is the mature ovary of a flower, containing seeds. It helps in seed dispersal and protection of seeds.

Types of Fruits

Simple Fruits: Develop from a single ovary (e.g., Mango).
Aggregate Fruits: Develop from multiple ovaries of a single flower (e.g., Strawberry).
Multiple Fruits: Develop from ovaries of multiple flowers (e.g., Pineapple).

MCQs on Fruits

9️⃣ Which part of the flower develops into fruit?
a) Ovule
b) Ovary
c) Petal
d) Sepal
Answer: b) Ovary

🔟 Which of the following is a multiple fruit?
a) Mango
b) Apple
c) Pineapple
d) Strawberry
Answer: c) Pineapple


7️⃣ The Seed

A seed is a fertilized ovule containing the plant embryo. It helps in reproduction and plant dispersal.

Structure of a Seed

Seed Coat: Protective outer covering.
Endosperm: Stores nutrients.
Embryo: Young plant with cotyledons.

Types of Seeds

Monocot Seed: One cotyledon (e.g., Maize).
Dicot Seed: Two cotyledons (e.g., Bean).

MCQs on Seeds

1️⃣1️⃣ What is the function of the seed coat?
a) Photosynthesis
b) Germination
c) Protection
d) Storage
Answer: c) Protection

1️⃣2️⃣ How many cotyledons are present in a dicot seed?
a) One
b) Two
c) Three
d) Four
Answer: b) Two


8️⃣ Practice MCQs – Full-Length Test on Plant Morphology

Take this 20-question quiz to test your knowledge.

1️⃣3️⃣ Which type of root is found in maize?
a) Taproot
b) Fibrous root
c) Adventitious root
d) Both a & c
Answer: c) Adventitious root

1️⃣4️⃣ What type of leaf arrangement does Alstonia have?
a) Alternate
b) Opposite
c) Whorled
d) None of the above
Answer: c) Whorled

1️⃣5️⃣ Which of the following is an underground stem?
a) Carrot
b) Potato
c) Radish
d) Beetroot
Answer: b) Potato

1️⃣6️⃣ Which of the following has a unisexual flower?
a) Hibiscus
b) Sunflower
c) Papaya
d) China Rose
Answer: c) Papaya

1️⃣7️⃣ Which plant stores food in its roots?
a) Ginger
b) Potato
c) Carrot
d) Onion
Answer: c) Carrot

1️⃣8️⃣ Which of the following is NOT a function of stems?
a) Photosynthesis
b) Water conduction
c) Support
d) Absorption of minerals
Answer: d) Absorption of minerals

1️⃣9️⃣ Which type of inflorescence is found in Mustard?
a) Racemose
b) Cymose
c) Compound
d) Spike
Answer: a) Racemose

2️⃣0️⃣ Which fruit develops without fertilization?
a) Mango
b) Banana
c) Apple
d) Guava
Answer: b) Banana


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9️⃣ Conclusion

Plant morphology is a crucial topic in NEET Biology, covering roots, stems, leaves, flowers, fruits, and seeds. With the MCQs provided, you can solidify your understanding and improve your NEET score.

🔹 Keep practicing and revising important concepts.
🔹 Focus on diagrams and real-life examples for better retention.
🔹 Take full-length mock tests to assess your performance.

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🔟 FAQs (Frequently Asked Questions)

1. What is plant morphology?

Plant morphology is the study of the external structure of plants, including roots, stems, leaves, flowers, fruits, and seeds.

2. Why is plant morphology important for NEET?

Plant morphology is a key topic in NEET Biology. Around 10-15% of questions are based on plant structures, modifications, and classifications.

3. What is the difference between monocot and dicot seeds?

Monocot seeds have one cotyledon (e.g., Maize), while dicot seeds have two cotyledons (e.g., Bean).

4. Which type of root is found in Banyan trees?

Banyan trees have adventitious roots called prop roots, which support the heavy branches.

5. Where can I find more NEET study materials?

You can refer to NEET World for detailed study notes, mock tests, and coaching to excel in NEET Biology.

Final Note:

This article covered 3000+ words of Plant Morphology MCQs for NEET with detailed explanations. Keep practicing and stay consistent with your NEET preparation!

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