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प्रश्न
“Cell division is a type of reproduction in unicellular organism.” Justify.
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उत्तर
In unicellular organisms all the important functions are carried out by the single cell because they lack all cellular organelles. The two types of reproduction i.e sexual and asexual need the involvement of many organelles and biomolecules . Hence, these modes of reproduction is absent in prokaryotes. Unicellular organisms are the simple organisms. Therefore, cell division acts as the mode of reproduction and results in the production of daughter cells.
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संबंधित प्रश्न
What is the name of female part of a flower?
Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
(a) Draw a neat diagram of a flower showing its various parts. In this diagram mark stem, receptacle, sepals, petals, stamen and carpel.
(b) What name is given to (i) all the petals of a flower, and (ii) all the sepals of a flower?
(c) What are (i) stamen, and (ii) carpel, in a flower?
(d) What is the other name of carpel of a flower?
(e) What is the name of yellow powdery substance present in the anther of a flower?
Find the odd one out:
Define.
Inflorescence
Give scientific reason.
Flower is a structural unit of sexual reproduction in plants.
The flower of the Hibiscus plant is ______
Complete the table
| Carly x | ______ | ______ |
| ______ | petal | attract insects |
| Androecium | ______ | Male reproductive part |
| ______ | ______ | Female reproductive part. |
Give reason for the following:
Fertilization cannot take place in flowers if pollination does not occur.
What is the function of calyx?
