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प्रश्न
Make sketches of animal and plant cells which you observe under microscope.
संक्षेप में उत्तर
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उत्तर
- Plant cell:
- It is usually larger in size. It is hard in nature.
- Plant cells have a cell wall in addition to their cell membrane.
- Plant cell have chloroplast which contains chlorophyll
- Plant cells have large vacuoles. Centrioles are absent.
- Animal cell:
- Animal cells are generally smaller than plant cells. It is not so hard as plant cells.
- A cell wall is absent.
- Chloroplast is usually absent.
- An animal cell may have many small vacuoles.
- Centrioles are found in animal cells.
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अध्याय 5: The Cell - Evaluation [पृष्ठ ६७]
APPEARS IN
संबंधित प्रश्न
Make a comparison and write down ways in which plant cells are different from animal cells.
What is osmosis?
Give a brief account of discovery of the cell.
Name the part of the cell concerned with the following:
Hydrolytic in function
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 a short answer.
What is the relationship between growth and cell division?
Why was the invention of the microscope so important to the study of living beings?
What is cell theory? Name the three scientists whose work led to the formulation of the cell theory.
Why are mitochondria called the powerhouse of the cell?
What is difference between us?
Prokaryotic cell and eukaryotic cell.
