Pollination
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The non-motile male and female gametes produced in flowering plants are brought together for fertilisation by a mechanism called __________.
Syngamy
Parthenogenesis
Pollination
Apomixis
Select the correct option to fill in the blank.
- Style
- Ovary
- Ovule
- Stigma
- stamen
- stigma
- ovary
- filament
Which one of the following statements in not true?
Honey is made by bees by digesting pollen collected from flowers
Pollen grains are rich in nutrients, and they are used in the form of tablets and syrups
Pollen grains of some plants cause severe allergies and bronchial afflictions in some people
The flowers pollinated by flies and bats secrete foul odour to attract them
- Body cell
- Stalk cell
- Generative cell
- Vegitative cell
. In which of following, the plants have all roots?
(a) Podostemon
(b) Lemna
(c) Wolffia
(d) Utricularia
In which of the following scenarios, pollination will lead to fertilisation?
Pollen grains of pumpkin flower falls on the stigma of a pumpkin flower
Pollen grains of pumpkin flower falls on the stigma of an ash gourd flower
Pollen grains of ash gourd flower falls on the stigma of a pumpkin flower
Pollen grains of an ash gourd flower falls on the stigma of another ash gourd flower
- PMC
- MMC
- Nucellus
- All of the above
- Entomophilous
- Anemophilous
- Hydrophilous
- Malscophilous
Cross pollination can induce
Diseases in plants
Variation in plants
Non viable seeds in plants
None of the above
Which among the following are found in gymnosperms?
1. Ovary, style and stigma 2. Haploid endosperm
3. Triploid endosperm 4. Double fertilization.
5. Anemophily
1 and 2
2 and 5
2, 4 and 5
1, 3 and 5
5