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प्रश्न
Name the scientist who invented the first microscope.
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उत्तर
Antony Van Leeuwenhoek
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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.
Where are chromosomes found in a cell? State their function.
Explain why chloroplasts are found only in plant cells?
Which type of cell division is required for growth and repair of body and which type is involved in formation of gametes?
Write down differences between organ and organelle.
Which one of the following is found both in the cells of a mango plant and a monkey?
What was the contribution of the following to our knowledge of cells?
Schleiden
Who studied the cell first?
Answer the following question.
Why is the cell called the structural and functional unit of life?
Under the microscope, Priya observes a cell that has a cell wall and distinct nucleus. The cell that she observed is
