Morphology of Flowering Plants for NEET UG
Morphology is the study of a plant's outer form: roots, stems, leaves, flowers, fruits and seeds. Many NEET questions ask you to spot how a part has been modified for a special job.
BiologyClass 1182 MCQs2 lessons13 flashcards4 memory tricks
Practise Morphology of Flowering Plants free
What you'll learn
- Root, stem and leaf, and their modifications
Identify the normal and modified forms of roots, stems and leaves. - Flowers, fruits and seeds
Describe flower parts, read a floral formula, and tell types of placentation and fruit apart.
Memory tricks
Ginger and turmeric are rhizomes, and potato is a stem tuber (its 'eyes' are nodes with buds), all underground stems. Sweet potato is a modified root.
Solanaceae also gives tobacco, petunia and belladonna. Fabaceae is the dal family: chana, arhar, moong, soybean, groundnut.
Axile: tomato, lemon, china rose. Marginal: pea. Parietal: mustard, Argemone. Free central: Dianthus, Primrose. Basal: sunflower, marigold.
Vexillary (papilionaceous) aestivation is typical of Fabaceae: standard (vexillum) outermost, then two wings, then two fused keel petals.
Try 3 NEET-style questions
Q1. Alternate phyllotaxy, in which a single leaf arises at each node in an alternate manner, is seen in
- Calotropis and guava
- Alstonia
- china rose, mustard and sunflower
- no flowering plant
Show answer
Answer: (3) china rose, mustard and sunflower
Alternate phyllotaxy: china rose, mustard and sunflower. Opposite: Calotropis and guava. Whorled: Alstonia.
Q2. The edible part of onion is
- the stem
- the root
- fleshy leaf bases (scale leaves)
- the flower
Show answer
Answer: (3) fleshy leaf bases (scale leaves)
Onion bulbs have fleshy scale leaves storing food.
Q3. Flowers of the family Liliaceae typically have
- five free petals and a bicarpellary ovary
- six tepals in two whorls of three, and a superior trilocular ovary
- a large standard petal, two wings and a keel
- four petals arranged like a cross
Show answer
Answer: (2) six tepals in two whorls of three, and a superior trilocular ovary
Liliaceae: perianth of six tepals (3 + 3), six stamens, tricarpellary syncarpous superior ovary with axile placentation. Examples: tulip, Aloe, onion (in NCERT).
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