1. | Stipules | Small leaf like structure, generally two in number, that are sometimes present at the leaf base |
2. | Pulvinus | Leaf base in monocotyledons expanded into a sheath covering the stem partially or wholly |
3. | Petiole | A stalk that connects the blade with the leaf base |
4. | Leaf blade | Also called as lamina and is the green expanded part of the leaf with veins and veinlets |
Column I | Column II | ||
A. | Simple leaf | P. | Lamina is entire or when incised, the incisions do not touch the midribs |
B. | Pinnately compound leaf | Q. | The leaflets are attached at a common point, i.e., at the tip of petiole |
C. | Palmately compound leaf | R. | A number of leaflets are present on a common axis, the rachis |
A | B | C | |
1. | P | Q | R |
2. | P | R | Q |
3. | R | Q | P |
4. | Q | P | R |
Column I [Phyllotaxy] |
Column II [Example] |
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A. | Alternate | P. | Alstonia |
B. | Opposite | Q. | Calotropis and Guava |
C. | Whorled | R. | China rose, Mustard and Sunflower |
A | B | C | |
1. | P | Q | R |
2. | P | R | Q |
3. | R | Q | P |
4. | Q | P | R |
I. | Leaves are modified into tendrils for climbing as in pea. |
II. | Leaves are modified into spines for defence as in cacti. |
III. | The leaves of onion and garlic store food. |
IV. | In Australian acacia, petioles expand, become green and synthesize food. |
V. | The trapping structure of venus fly trap and pitcher of pitcher plant are modified leaves. |
1. 2 | 2. 3 |
3. 4 | 4. 5 |
A. | Actinomorphic flower | Gulmohur |
B. | Zygomorphic flower | Mustard |
C. | Asymmetric flower | Cassia |
1. Only A and B | 2. Only B |
3. Only C | 4. A, B and C |
1. | Rose | 2. | Plum |
3. | Peach | 4. | China rose |
1. | Calyx and superior ovary respectively |
2. | Calyx and inferior ovary respectively |
3. | Corolla and inferior ovary respectively |
4. | Corolla and superior ovary respectively |
1. Solanaceae | 2. Brassicaceae |
3. Anacardiaceae | 4. Orchidaceae |