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प्रश्न
What structural and functional attributes must a cell have to be called a living cell?
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उत्तर
The structural and functional attributes must a cell has to be called a living cell are:
- Cell membrane- It is the outer membrane of the cell, it is selectively permeable so which allows only selected material to pass through it.
- Cytoplasm- It is a semi-fluid matrix and occupies the volume of the cell. It contains various materials which are necessary for the continuation of life as well as various chemical reactions that occur in it to keep the cell in a living state.
- Genetic material- Both eukaryotic and prokaryotic cells have genetic material. It is responsible for the carrying of hereditary characters from one generation to another.
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संबंधित प्रश्न
Which of the following is not correct?
Cell is the basic unit of life. Discuss in brief.
Indicate whether the following statements are True (T) or False (F).
Unicellular organisms have one-celled body. (T / F)
Indicate whether the following statements are True (T) or False (F).
Muscle cells are branched. (T / F)
Indicate whether the following statements are True (T) or False (F).
Amoeba has irregular shape. (T / F)
Make a sketch of the human nerve cell. What function do nerve cells perform?
Assertion (A): Tissue is a group of dissimilar cells.
Reason (R): Muscle is made up of Muscle cell.
______ cells are specialised cells that can be transformed into any kind of cells.
Define a Prokaryotic cell.
In Latin, the word ‘cellula’ means a ______.
The cell is self-sufficient and carries out all the fundamental and essential functions of an organism.
A cell will swell up if
Cell arises from pre-existing cell was stated by
Cell theory was given by
Do you agree that “A cell is a building unit of an organism”. If yes, explain why?
Which of the following is not a cell?
Match the terms given in column I with their functions given in column II and fill the blanks given below the table:
| Column I | Column II |
| A. Chloroplast | i) carries hereditary characters |
| B. Cell membrane | ii) controls the activities of cells |
| C. Nucleus | iii) site of photosynthesis |
| D. Chromosome | iv) controls the movement of materials into and out of cells. |
A - ______; B - ______; C - ______; D - ______
Give two examples of stains which make the nucleus distinct.
