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प्रश्न
Name the part of the cell concerned with the following :
The entry of only certain substances into and out of the cell.
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उत्तर
Cell membrane
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.
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?
State whether the following statement is true (T) or False (F):
Genes are located on a chromosome.
Write true or false for each statement. Rewrite the false statements correctly:
Growth and reproduction are based on cell division
Name any five cell organelles.
Which is the smallest cell?
the question has four options. Choose the correct answer:
Cell theory states
What is a ‘cell’?
Answer the following question.
Who discovered cells, and how?
