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प्रश्न
Name the longest cell.
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उत्तर
Fibres of ramie
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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.
Write short notes on the following.
Cytoplasm
Write short notes on the following.
Nucleus of a cell
State the difference between eukaryotes and prokaryotes
Name the part of the cell concerned with the following :
Transmission of hereditary characters from parents to offspring
Name the part of the cell concerned with the following :
The entry of only certain substances into and out of the cell.
Fill in the blank with a suitable word:
The single-celled alga ______ measures 10 cm in length.
Fill in the blank with a suitable word:
DNA is an abbreviated form of ______.
Sketch and describe in your own words, the animal cell
Answer the following question.
Who discovered cells, and how?
