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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.
A plant cell can be identified from an animal cell by the :
Write true or false for each statement. Rewrite the false statements correctly:
The size of a cell is usually measured in centimetres
Write a short answer.
Why are mitochondria called the powerhouse of the cell?
Name any five cell organelles.
Expand - SER
Describe the structure of the chromosome in brief.
What is difference between us?
Prokaryotic cell and eukaryotic cell.
The Term “ cell” was coined by ______
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 |
