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प्रश्न
Give an example of an angiosperm seed that has a perisperm. Name the part the perisperm develops from.
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उत्तर
The perisperm is developed from the residual, persistent nucellus in some seeds. It is found in black pepper and beet.
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संबंधित प्रश्न
List the three stages the annuals and biennial angiosperms have to pass through during their life cycle.
Name the terminal stage of ageing in the life cycle of plants.
Give a reason for the Following:
Pollen grains of wind-pollinated flowers are produced in large quantities.
Sketch and label ‘structure of a pea flower’.
A typical flower has ______ different kinds of whorl.
What is the similarity between gymnosperms and angiosperms?
Match List I with List II:
| List I (Types of Stamens) |
List II (Example) |
||
| A. | Monoadelphous | I. | Citrus |
| B. | Diadelphous | II. | Pea |
| C. | Polyadelphous | III. | Lily |
| D. | Epiphyllous | IV. | China-rose |
Choose the correct answer from the options given below:
What is the floral envelope called when the calyx (sepals) and corolla (petals) cannot be differentiated from one another?
Which of the following is considered an "essential whorl" of a flower?
What is the main function of the corolla?
