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questions & answers.
Q1.
Fill in the blanks.
- The type of reproduction which involves only one parent is ____________________.
- Science of cultivating fruits, vegetables, flowers or ornamental plants is ____________________.
- The part of the embryo which forms the shoot is called ______________.
- In epigeal germination, the ________________ elongates.
- Flowers which have both stamens and carpel are called ______________ or ________________.
- The portion of stem above the cotyledon is called __________________.
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Answer:
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- Asexual reproduction
- Horticulture
- Radicle
- Hypocotyls
- Bisexual or perfect
- Epicotyl (gives rise to stem)
Q2.
Mark the statements True or False. Correct the false ones.
- The hilum bursts when a seed imbibes water.
- Dry seeds do not have active enzymes.
- The plumule emerges before the radicle.
- Autogamy is also known as cross pollination.
- Scion is the short piece of stem containing buds used for grafting.
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Answer:
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- False
Hilum swells when a seed imbibes water. - True
- False
The radicle emerges before the plumule. - False
Autogamy is also known as self pollination. - True
Q3.
Match the words in Column 1 with phrases in Column 2.
| Column 1 | Column 2 |
| a. Rhizome | i. product of fusion of gametes |
| b. Embryo | ii. fusion of male and female gametes |
| c. Hybridisation | iii. stem modified for reproduction |
| d. Zygote | iv. asexual reproduction |
| e. Pollen | v. consists of radicle and plumule |
| f. Vegetative propagation | vi. develop into seeds |
| g. Ovules | vii. artificial crossing of two plants |
| h. Fertilization | viii. male gamete |
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answer not shownQ4.
Give the scientific terms for the following:
- Seed coat
- Small hole in seed coat
- Sheath that covers the plumule
- Tissue in which food is stored in monocots
- Point of attachment of the seed to fruit
- Portion of stem below the cotyledon
- Crossing two different varieties
- Asexual reproduction where an organism splits into many fragments
- Embryonic root
- Seed leaf
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Answer:
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- Testa
- Micropyle
- Coleorhiza
- Cotyledons
- Micropyle
- Hypocotyl
- Hybridization
- Multiple fission
- Radicle
- Cotyledons
Q5.
Describe in brief the process of germination.
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