NEET · Biology · Morphology of Flowering Plants doubts
10 doubts found
Is a potato a root or a stem — and how can you actually tell?
A potato is a modified underground STEM (a stem tuber), not a root.
Why do desert plants like cacti have sharp spines instead of broad leaves?
Broad leaves lose a lot of water through transpiration, which a desert plant can't afford.
How do weak-stemmed climbers like peas and grapevines manage to grow upward?
Their stems can't stand on their own, so parts are modified into tendrils — slender, sensitive structures that coil around any support they touch (a response called thigmotropism).
Potato, ginger, onion and carrot are all 'underground vegetables' — are they the same kind of organ?
No — they're different modified organs.
What does “Modifications of organs” actually mean in Morphology of Flowering Plants, and why does it matter for NEET?
roots, stems and leaves can be modified for storage, support, climbing or protection while keeping their defining features.
I keep getting “Modifications of organs” questions wrong in Morphology of Flowering Plants. What's the trap?
identifying a modified organ by where it grows rather than its structure.
What does “Stem vs root features” actually mean in Morphology of Flowering Plants, and why does it matter for NEET?
stems bear nodes, internodes and buds and are usually positively phototropic; roots lack nodes/buds and grow toward gravity.
I keep getting “Stem vs root features” questions wrong in Morphology of Flowering Plants. What's the trap?
calling any underground part a root.
What is the difference between tap root and fibrous root?
A tap root has one main root with smaller branches (dicots, e.g. mustard); a fibrous root system is a cluster of thin roots of similar size (monocots, e.g. grass).
What is the difference between tendril and spine?
A tendril is a slender coiling structure (modified stem or leaf) for climbing; a spine is a hard pointed structure (often a modified leaf) for protection and reducing water loss.