This topic covers the external structure and organization of flowering plants, systematically examining each major organ — root, stem, leaf, inflorescence, flower, fruit, and seed. It emphasizes how structural variations...
Morphology is the study of form, structure, and development of plants, focusing on vegetative (root, stem, leaf) and reproductive (flower, f...
The root develops from the radicle, is positively geotropic and hydrotropic, and lacks nodes and leaves.
Roots are modified for storage (carrot), support (banyan), and respiration (mangrove).
~18 min · full explanation, examples & memory tricks in the app
❓ Leveled MCQ practice
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18 questions laddered from warm-up to topper-level, each with an explanation. A taste:
Which part of the embryo develops into the shoot system?
Beginner
A HypocotylB PlumuleC RadicleD Cotyledon
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Plumule
The plumule grows upward to form the shoot system (stem, leaves, flowers), while the radicle forms the root system.
A plant part has nodes and internodes. Which organ is it most likely to be?
Beginner
A LeafB StemC RootD Fruit
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Stem
Stems are characterized by nodes (where leaves attach) and internodes (spaces between nodes). Roots lack these features.
Which of the following is a root modification for respiration?
Intermediate
A Mangrove pneumatophoresB Banyan prop rootsC CarrotD Potato tuber
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Mangrove pneumatophores
Mangroves have pneumatophores, which are root modifications that help in gaseous exchange in waterlogged soil. Carrot is for storage, banyan for support, and potato is a stem.
In a racemose inflorescence, the oldest flowers are typically found at the ______.
Intermediate
A tipB randomly scatteredC middleD base
Show answer & explanation
base
Racemose inflorescence shows acropetal succession, meaning flowers open from bottom to top, so the oldest are at the base.
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