The stalk of the inflorescence is called
1. Pedicel
2. Petiole
3. Peduncle
4. Phyllode
In ovary, many ovules can be seen in all, except:
1. Fabaceae
2. Solanaceae
3. Brassicaceae
4. Poaceae
a. | Modified axillary buds |
b. | Found in Citrus |
c. | Modifications of stem to protect plants from browsing animals |
I: | Tepals |
II: | Fused carpels in the ovary |
III: | Stamens |
1. | Having the sepals united | Gamosepalous |
2. | Sterile stamen | Staminate |
3. | Stamens attached to perianth | Epiphyllous |
4. | Having the carpels of the gynoecium united in a compound ovary | Syncarpous |
I: | Stem tendrils develop from axillary buds and help plants, such as pea, to climb |
II: | Opuntia modifies its stems into flattened structures to protect itself from browsing animals |
III: | Underground stems of some plants such as grass and strawberry spread to new niches and when older plants die, new plants are formed. |
1. | I, II, and III |
2. | Only II and III |
3. | Only III |
4. | Only I and III |
1. | Six | 2. | Seven |
3. | Eight | 4. | Five |
I: | In a typical dicotyledonous embryo, the portion of the embryonal axis above the level of cotyledons is the epicotyl, which terminates with the plumule or stem tip. |
II: | In a typical dicotyledonous embryo, the cylindrical portion below the level of cotyledons is hypocotyl, and it terminates at its lower end in the radicle or root tip. |
III: | In the grass family, the cotyledon is called the scutellum, which is situated towards one side (lateral) of the embryonal axis. |
IV: | At its lower end, the embryonal axis in monocots has the radical and root cap enclosed in an undifferentiated sheath called coleorhiza. |
V: | In monocots, the portion of the embryonal axis above the level of attachment of the scutellum is the epicotyl. |
1. | 2 | 2. | 3 |
3. | 4 | 4. | 5 |
Assertion (A): | Leaves showing parallel venation are found in monocotyledonous plants |
Reason (R): | In leaves showing parallel venation, the veins run parallel to one another, veinlets are inconspicuous and reticulations are absent |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |