Flower
Flower: Overview
This Topic covers sub-topics such as Flower, Parts of a Flower, Corolla, Stamen, Ovule, Calyx, Anther, Androecium, Gynoecium, Unisexual Flower, Bisexual Flower, Perianth, Hilum, Thalamus of Flower, Bract, Hypogynous Flowers and, Valvate Aestivation
Important Questions on Flower
Assertion: Plants lack excretory organs.
Reason: Plant usually absorbs essential nutrients and lead a passive life.
Match the following :
| List-I | List-II | ||
| A) | Valvate corolla | I) | Gulmohur |
| B) | Funnel-shaped corolla | II) | Vexillary |
| C) | Papilionaceous flower | III) | Calotropis |
| D) | Imbricate aestivation | IV) | Datura |
The correct match is:
Which of the following statement is not correct?
Match the column and select the correct option:
| Column I | Column II | ||
| A | Marginal placentation | 1 | Dianthus |
| B | Free central placentation | 2 | Marigold |
| C | Axile placentation | 3 | Acacia |
| D | Basal placentation | 4 | Lemon |
In the standard nomenclature used for depicting floral formula, which type of flower is represented by ?
Which one of the following families shows both freedom and fusion in four successive whorls of the flower from the exterior in different members?
Assertion : An incomplete flower can be perfect.
Reason : Perfect flowers (incomplete) are called neuter.
Assertion : Persistent sepals of Physalis are called acrescent.
Reason: In Guava, the sepals are marcascent.
Assertion : In syngenesious stamen, the filaments are fused and the anther are free.
Reason : In synandrous stamen, both filaments and anthers are fused.
The condition where filaments and anthers are fused throughout the entire length is
Tetradynamous condition is related to
Hair present on the cob of corn are
Or
Long filamentous threads protruding at the end of a young cob of maize are
Basifixed monothecous anthers (OR) anthers with two microsporangia is characteristics of
Papilionaceous flower with large vexillum covering two wings and the wings covering the keel has corolla aestivation of
