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प्रश्न
“Cell division is a type of reproduction in unicellular organism.” Justify.
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
Name and differentiate between the two modes of pollination in flowering plants.
Name the swollen lower part of the carpel.
Fill in the following blank with suitable word :
The female organ of reproduction in the flower is the...........
Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
The length of pollen tube depends on the distance between :
(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style
You have to perform the experiment, "To identify the different parts of an embryo of a gram seed." Describe the procedure that you would follow.
(a) Identify A, B and C in the given diagram and write their functions.
(b) Mention the role of gamete and zygote in sexually reproducing organisms.
Give scientific reason.
Flower is a structural unit of sexual reproduction in plants.
Gloriosa superba exhibits ______.
Give any two examples of agents of pollination.
