Available Answers

1. 1.

   Fill in the blanks.

   1. The type of reproduction which involves only one parent is ____________________.
   2. Science of cultivating fruits, vegetables, flowers or ornamental plants is ____________________.
   3. The part of the embryo which forms the shoot is called ______________.
   4. In epigeal germination, the ________________ elongates.
   5. Flowers which have both stamens and carpel are called ______________ or ________________.
   6. The portion of stem above the cotyledon is called __________________.
2. 2.

   Mark the statements True or False. Correct the false ones.

   1. The hilum bursts when a seed imbibes water.
   2. Dry seeds do not have active enzymes.
   3. The plumule emerges before the radicle.
   4. Autogamy is also known as cross pollination.
   5. Scion is the short piece of stem containing buds used for grafting.
3. 3.

   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

    

4. 4.

   Give the scientific terms for the following:

   1. Seed coat
   2. Small hole in seed coat
   3. Sheath that covers the plumule
   4. Tissue in which food is stored in monocots
   5. Point of attachment of the seed to fruit
   6. Portion of stem below the cotyledon
   7. Crossing two different varieties
   8. Asexual reproduction where an organism splits into many fragments
   9. Embryonic root
   10. Seed leaf
5. 5.

   Describe in brief the process of germination.

6. 6.

   Explain the process of hybridisation.