Match List-I with List-II.
| List-I | List-II | ||
| (A) | Petiole | (I) | Allow leaf blade to flutter in wind |
| (B) | Lamina | (II) | Swollen leaf base in some leguminous plants |
| (C) | Pulvinus | (III) | Lateral small leaf like structures |
| (D) | Stipules | (IV) | Green expanded part of leaf with veins and veinlets |
Choose the most appropriate answer from the options given below:
A-I, B-IV, C-II, D-III
— Concept: This question tests your understanding of the different parts of a typical leaf and their specific functions.Concept: This question tests your understanding of the different parts of a typical leaf and their specific functions.
Why (C) is correct:
- (A) Petiole is the stalk of the leaf. It helps hold the blade to light and allows the leaf blade to flutter in the wind, cooling the leaf surface and bringing fresh air to it. So, A matches with (I).
- (B) Lamina (or leaf blade) is the green, expanded part of the leaf with veins and veinlets, responsible for photosynthesis. So, B matches with (IV).
- (C) Pulvinus is the swollen leaf base found in some leguminous plants, involved in sleep movements (nyctinasty) and touch-sensitive movements (thigmonasty). So, C matches with (II).
- (D) Stipules are small, leaf-like lateral appendages found at the base of the petiole in some plants, often protecting the young leaf. So, D matches with (III).
Why other options are wrong:
- (A) Incorrectly matches petiole with stipules or lamina with fluttering.
- (B) Incorrectly matches petiole with stipules and lamina with fluttering.
- (D) Incorrectly matches petiole with stipules and lamina with fluttering.
Common Mistake: Students often confuse the functions of the petiole and lamina, or the structure of stipules and pulvinus.
NEET Tip / Mnemonic: Remember that the Petiole Provides Positioning and Protection (from overheating by fluttering). Lamina is for Light absorption and Life (photosynthesis). Pulvinus is for Plants' Positional Play (movements).
Correct Answer: (C)
A-I, B-IV, C-II, D-III