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प्रश्न
Why was the invention of the microscope so important to the study of living beings?
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उत्तर
All living organisms, unicellular, or multicellular are made up of cells. Microscope makes it possible to see inside the cells that make up all living organisms. Without a microscope we could not see or understand, how life works. So the invention of the microscope made it possible to see the basic component of life.
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संबंधित प्रश्न
Where are chromosomes found in a cell? State their function.
Do you think the cells of an elephant would be larger than the cells of a rat? Explain briefly.
Match the name of the organelle given in Column A with its function given in Column B.
| Column A (Organelle) | Column B (Function) | ||
| 1 | leucoplast | a | help in cell division |
| 2 | nucleus | b | transport of material |
| 3 | ribosomes | c | making food |
| 4 | mitochondria | d | digesting foreign bodies |
| 5 | endoplasmic reticulum | e | storage of starch and proteins |
| 6 | golgi bodies | f | making the cell turgid |
| 7 | chloroplast | g | making proteins |
| 8 | centrosome | h | controlling all the vital activities of a cell |
| 9 | vacuole | i | releasing energy |
| 10 | lysosomes | j | synthesis of cell wall in a plant cell |
Where are the genes located in a cell?
What is the function of the following?
Ribosomes
Expand - ER
Match the items in column A with the appropriate items in column B:
| column A | column B |
| 1. Platform or workplace for the synthesis of proteins | a. Golgi complex |
| 2. A powerhouse of cells | b. Ribosomes |
| 3. Help in the formation of cell plate during cell division | c. Chloroplast |
| 4. Site for photosynthesis | d. Mitochondria |
| 5. Control tower of cell | e. Chromosomes |
| 6. A structure bearing genes | f. Nucleus |
What is difference between us?
Plant cell and animal cell.
