Find out the wrongly matched pair :-
1. Tuber - Potato
2. Leaf buds - Banana
3. Bulbil - Agave
4. offset - Water hyacinth
Thorns of Bougainvillea are the modification of
1. | Apical buds | 2. | Vegetative buds |
3. | Accessory buds | 4. | Axillary buds |
Sweet potato is a modified
1. Rhizoid
2. Stem
3. Adventitious Root
4. Leaf
Underground modification of stem occurs for following special functions, except
1. Storage of food
2. Vegetative propagation
3. Assimilation
4. Perennation
Identify the correct statement regarding the stem morphology from the following:
I: | Stems bear only axillary buds. |
II: | Axillary buds may get modified into thorns as in Citrus |
III: | Stem tendrils develop from axillary buds as in gourds. |
1. | Only I and II | 2. | Only I and III |
3. | Only II and III | 4. | I, II and III |
Which one of the following organisms is correctly matched with its three characteristics?
1. Pea: C3 pathway, Endospermic seed, Vexillary aestivation
2. Tomato: Twisted aestivation, Axile placentation, Berry
3. Onion: Bulb, Imbricate aestivation, Axile placentation
4. Maize : C3 pathway, Closed vascular bundles, Scutellum
Offset is one internode-long runner and its each node bears rosette of leaves and a tuft of roots. It is found in aquatic plants like:
1. Hydrilla
2. Pistia
3. Eichhornia
4. Both (2) and (3)
When a shoot tip transforms into a flower,
1. It is always solitary
2. The flower is always short-lived
3. It is never solitary
4. The flower is always long-lived
Stem tendrils are not seen in:
1. Grapevine
2. Watermelon
3. Citrus
4. Cucumber
Which of the following is not a stem modification?
1. Thorns of citrus
2. Tendrils of cucumber
3. Flattened structures of Opunita
4. Pitcher of Nepenthes