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प्रश्न
the question has four options. Choose the correct answer:
Cell theory states
विकल्प
all cells have a nucleus
all cells are living
cell reproduces by mitosis and meiosis
cells are functional and structural unit of plants and animals
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उत्तर
cells are functional and structural unit of plants and animals
APPEARS IN
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.
Fill in the blanks:
Organisms which are made up of a single cell are called ______ organisms.
Write true or false for each statement. Rewrite the false statements correctly:
The size of a cell is usually measured in centimetres
Who proposed the Cell theory? Explain the main points of this theory.
What was the contribution of the following to our knowledge of cells?
Virchow
Fill in the blank with a suitable word:
DNA is an abbreviated form of ______.
Fill in the blank with a suitable word:
______ controls all the metabolic activities of the cell.
The instrument used to observe the cell is _____
