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Question
Draw a neat and labelled diagram.
Double fertilization in angiosperms
Solution
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When an insect sits on the flower of a plant then some particles A present in the top of little stalks in the flower attach to its body hair. When this insect now sits on the flower of another similar plant, then particles A attached to the hair of insect are put on the top of a flask-shaped organ at the centre of flower. The particle A grows a long tube b from the top of flask-shaped organ through which C moves down and reaches the bottom part of flask-shaped organ. Here C fuses with the nucleus of d contained in structure E. the fusion of C and D forms a new cell f which grows and develops into a seed of the plant.
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The male gamete is present inside the which germinates.
- the style
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Fill in the blanks:
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| 5. | Sucker | Bignonia |
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