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Question
Differences between light microscope and electron microscope.
Distinguish Between
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Solution
| Light microscope | Electron microscope |
| 1. It uses glass lenses | 1. It uses electromagnets. |
| 2. It uses a beam of light to illuminate the object. | 2. It uses a beam of electrons instead of light |
| 3. Internal vacuum is not required. | 3. Internal vacuum is essential. |
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RELATED QUESTIONS
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 |
Write true or false for each statement. Rewrite the false statements correctly:
Growth and reproduction are based on cell division
What was the contribution of the following to our knowledge of cells?
Virchow
What was the contribution of the following to our knowledge of cells?
Schleiden
Fill in the blank with a suitable word:
______ controls all the metabolic activities of the cell.
Who studied the cell first?
Name the different organelles in a cell?
An electron microscope is necessary for the study of ______.
What is difference between us?
Plant cell and animal cell.
Matching:
| 1. | Discovery of cell | a. | Nerve cell |
| 2. | Unicellular organism | b. | spirogyra |
| 3. | Multicellular organism | c. | Robert Hooke |
| 4. | Longest cell | d. | Cyanobacteria |
| 5. | Prokaryotic cell | e. | Amoeba |
