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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 are the reproductive organs in a flower?
Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
Name the part of a seed which grows into root.
A student is asked to study the different parts of an embryo of pea seeds. Given below are the essential steps for the experiment :
(I) Soak the pea seeds in plain water and keep them overnight.
(II) Cut open the soaked seed and observe its different parts.
(III) Take some pea seeds in a petri dish.
(IV) Drain the excess water. Cover the seeds with a wet cotton cloth and leave them as it is for a day.
The correct sequence of these steps is
(A) III, I, IV, II
(B) III, IV, I, II
(C) III, I, II, IV
(D) III, II, I, IV
Sketch the labeled diagram:
Flower with its sexual reproductive organs
Explain sexual reproduction in plants.
Bisexual : Hibiscus : : Unisexual : ___________
Where does the endothecium layer of anther lobes is present?
Pineapple fruit develops from ______.
The process of release of eggs from the ovary is called ______
