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प्रश्न
What is endothelium?
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उत्तर
In Asteraceae species, the inner layer of the integument gets specialized for nourishing the embryosac and this is called integumentary tapetum or endothelium.
संबंधित प्रश्न
Sketch and label the V. S. of a mature anatropous ovule.
First cell of male gametophyte in angiosperm is
Arrange the layers of another wall from locus to periphery
Choose the correct statement(s) about tenuinucellate ovule
What is Cantharophily?
List any two strategy adopted by bisexual flowers to prevent self-pollination.
List out the functions of the tapetum.
Distinguish tenuinucellate and crassinucellate ovules.
Give short notes on types of ovules.
Explain the pollination mechanism in Salvia.
Discuss the steps involved in Microsporogenesis.
With a suitable diagram explain the structure of an ovule.
______ refers to the flower in which gynoecium possesses many free carpels.
Identify the function/s of integuments.
Match the Column I (Type of pollination) and Column II (Characteristics). Select the correct option.
| Column I | Column II | ||
| a. | Ornithophily | 1. | Nocturnal flower |
| b. | Entomoohily | 2. | Light pollens |
| c. | Chiropterophily | 3. | Funnel-shaped corolla |
| d. | Anemophily | 4. | Pleasant fragrance and nectar |
Flowering in pineapple is promoted by:
During the formation of leaves and elongation of stem, some cells ‘left behind’ from the shoot apical meristem, constitute the:
