Seed and Fruit Development — Unsolved Practice Set
Chapter: Sexual Reproduction in Flowering Plants | Topic: Seed and Fruit Development
SEED AND FRUIT DEVELOPMENT — UNSOLVED PRACTICE SET
Topic: Seed and Fruit Development
Multiple Choice Questions
Q1. After fertilisation, the ovule develops into the:
- Fruit
- Seed
- Endosperm
- Pericarp
Q2. The outer and inner integuments of the ovule mature into which seed coat layers respectively?
- Tegmen and testa
- Testa and tegmen
- Pericarp and testa
- Perisperm and tegmen
Q3. Seeds in which the endosperm is completely consumed by the developing embryo, with food stored in the cotyledons instead, are called:
- Albuminous seeds
- Non-albuminous seeds
- Perispermic seeds
- None of these
Q4. A fruit that develops without fertilisation is called a:
- True fruit
- False fruit
- Parthenocarpic fruit
- Aggregate fruit
Q5. In fruits like apple, the edible fleshy part develops mainly from the:
- Ovary wall
- Thalamus (receptacle)
- Integuments
- Nucellus
Short Answer Questions
Q6. Differentiate between albuminous and non-albuminous seeds, giving one example of each.
Q7. What is perisperm, and how is it different from endosperm in terms of origin?
Q8. Distinguish between true fruits and false fruits, with one example of each.
Q9. What is parthenocarpy, and how can it be artificially induced in commercially important fruits?
Long Answer Questions
Q10. Describe the changes that occur in an ovule as it transforms into a mature seed after fertilisation, mentioning the fate of the integuments, the nucellus, and the zygote.
Q11. Explain the structure of a typical fruit (pericarp) formed from the ovary wall, describing its three layers with a suitable example.
APPLICATION / ANALYSIS
Q12. A fruit vendor notices that a particular batch of grapes has no seeds inside, even though the plant was not genetically modified to be seedless. Using your knowledge of fruit and seed development, suggest a possible biological explanation for seedless grapes.
Q13. While examining an apple, a student is confused as to why the fleshy edible part does not seem to come directly from the ovary wall, as expected in a typical fruit. Based on floral structure, explain which part of the flower actually gives rise to the fleshy part of an apple, and what such fruits are called.