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प्रश्न
Write down differences between organ and organelle.
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उत्तर
| Organs | Organelles |
| 1. They are found in multicellular organisms. | 1. They are found in all eukaryotic cells |
| 2. They are large sized or macroscopic. | 2. They are very small sized, either microscopic or submicroscopic. |
| 3. They may be external or internal to the body of an organisms. | 3. They are mostly internal (i.e., intracellular). |
| 4. The organs are formed of tissues, tissues comprise of cells and cells are formed of organelles. | 4. An organelle is made up of micromolecules and macromolecules. |
| 5. Organs coordinate to form organ systems, while organ systems form the body of an organism. | 5. Organelles coordinate to produce the cell. |
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संबंधित प्रश्न
Carry out the following osmosis experiment:
Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now,
- Keep cup A empty.
- Put one teaspoon of sugar in cup B.
- Put one teaspoon salt in cup C.
- Put one teaspoon sugar in the boiled potato cup D.
Keep these for two hours. Then, observe the four potato cups and answer the following:
- Explain why water gathers in the hollowed portion of B and C.
- Why is potato A necessary for this experiment?
- Explain why water does not gather in the hollowed-out portions of A and D.
Differences between light microscope and electron microscope.
Name the part of the cell concerned with the following :
The entry of only certain substances into and out of the cell.
Try to find the names of four cell organells hidden in this maze, (hint: The hidden words can appear horizontally or vertically; forwards or backward or even mixed up). Write them in the lines provided. For example : “NUCLEUS” in the last row, seven backward letters.
| A | J | F | B | H | E | M | O | E | L | O | U | C | A | V |
| H | V | L | E | U | C | O | P | L | A | S | T | N | O | E |
| C | H | R | O | M | O | P | L | A | S | T | X | T | E | R |
| S | U | E | L | C | U | N | W | P | L | A | S | T | I | D |
Expand - ER
Describe the structure of the chromosome in brief.
Name the longest cell.
the question has four options. Choose the correct answer:
The cell was discovered by
The Term “ cell” was coined by ______
Write about the contribution of Robert Hooke in cell biology.
