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प्रश्न
Make sketches of animal and plant cells which you observe under microscope.
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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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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.
Which part of the cell contains organelles?
Where are chromosomes found in a cell? State their function.
State whether the following statement is true (T) or False (F):
Genes are located on a chromosome.
Name the scientist who invented the first microscope.
Who proposed the Cell theory? Explain the main points of this theory.
Expand - ER
the question has four options. Choose the correct answer:
Chromosomes are made up of
What is difference between us?
Plant cell and animal cell.
I take part in food production of a cell. Who am I? ____
