Biology
Exine and intine are the parts of:
- Embryo sac
- Pollen grain
- Stigma
- Seed
Pollination
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Answer
Pollen grain
Reason — The outer wall of the pollen grain is known as exine and the inner wall is known as intine.
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Related Questions
Complete the following statements
- Pollination is the process of transfer of …………… .
- The two kinds of pollination are …………… and …………… .
- For self-pollination, the flowers need not be …………… and showy.
- For self-pollination,…………… and …………… must mature at the same time.
- Self-pollination does not yield ……………varieties.
- In …………… pollination, there is much wastage of …………… .
Mention if the following statement are true
- Intine is the outer wall of pollen grain.
- Pollen tube enters ovule through micropyle.
- Zygote gives rise to embryo.
- Ovule becomes fruit.
- Dry sepals may persist in some fruits.
Which one of the following is one of the characteristics of self-pollinated flowers?
- Flowers are large and showy
- Flowers remain closed and do not open
- Stigma and anthers mature at the same time
- Pollen is produced in very large quantities
The kind of pollination in which the pollen of the same flower fall on its stigma is termed as:
- Geitonogamy
- Autogamy
- Homogamy
- Allogamy