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प्रश्न
Why is the cell called the structural and functional unit of life?
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उत्तर
- The building blocks of all living things are cells. The structural unit of life is therefore the cell.
- Because of the particular arrangement of its membrane and cytoplasmic organelles, every cell has its own unique structure and function.
- Cells with this kind of organization are able to carry out essential processes like breathing, getting nutrients, getting rid of waste, making new proteins, etc. Thus, the fundamental functioning unit of living things is the cell.
संबंधित प्रश्न
Where do the ribosomes get synthesized?
State whether the following statement is true (T) or False (F):
The cell wall is made of protein.
Match the item in column 'A' with those in column 'B'.
| Column A | Column B |
| (a) Vacuoles | (i) Intracellular digestion |
| (b) Nucleolus | (ii) Respiratory enzymes |
| (c) Lysosomes | (iii) Covered by tonoplast |
| (d) Anthocyanin | (iv) Dissolved in the cytoplasm |
| (e) Cristae | (v) Forms RNA |
_________ consists of membranous sacs and secrets 40 types of digestive enzymes.
Distinguish between the following pairs of terms :
Nucleolus and nucleus
Mention any three differences between a living cell and a brick in a wall.
State the major function of the following :
Ribosome
Put a tick mark (✓) against the correct alternative in the following statement:
A cell that is spherical in shape is
Fill in the blanks:
Golgi bodies are also called ______.
Identify the cellular structure with the help of the following clue:
It is made up of DNA threads.
