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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
Growth of cell wall during cell elongation take place by ______.
A cell is the smallest unit of life.
Basis unit of life.
Suitable term for the various components of cell is ______.
On the lines given below, write about what you have learned from the activities done in this lesson.
Let me tell you about some of the important things I’ve learned about cells. First, I’ll start with…______
______ cells are specialised cells that can be transformed into any kind of cells.
The cell is self-sufficient and carries out all the fundamental and essential functions of an organism.
All the cells can be seen with our naked eye.
Analogy:
Smallest cell: virus.
Biggest cell: ______.
Name the organelle without membrane.
Which of the following can be made into crystal?
Cell wall of which one of these is not made up of cellulose?
Cell arises from pre-existing cell was stated by
We eat food composed of all the nutrients like carbohydrates, proteins, fats, vitamins, minerals, and water. After digestion, these are absorbed in the form of glucose, aminoacids, fatty acids, glycerol etc. What mechanisms are involved in absorption of digested food and water?
Identify the correct statement about cells.
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 - ______
Fill in the blanks with the terms given in the box below:
| Nucleus, chromosomes, cell wall, cell membrane, protoplasm, cytoplasm, ribosome, cell organelles |
The outermost layer of plant cells is the ___(a)___ beneath which is the ___(b)___. The term ___(c)___ refers to the jelly-like substance containing all the ___(d)___. The ___(e)___ contains thread-like structures called ___(f)___.
Name the following:
A pigment which is not found in plastids.
Define the following term:
Cell
