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प्रश्न
New cells are produced from the existing cells.
विकल्प
True
False
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उत्तर
New cells are produced from the existing cells-True.
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.
Name the part of the cell concerned with the following :
The entry of only certain substances into and out of the cell.
Fill up the blank with the terms given below
The ____ is the structural unit of all living things
Who proposed the Cell theory? Explain the main points of this theory.
Describe the structure of the chromosome in brief.
Fill in the blank with a suitable word:
Cell ______ was proposed by Schleiden and Schwann.
the question has four options. Choose the correct answer:
Cell theory states
Answer the following question.
Who discovered cells, and how?
Matching:
| 1. | Discovery of cell | a. | Nerve cell |
| 2. | Unicellular organism | b. | spirogyra |
| 3. | Multicellular organism | c. | Robert Hooke |
| 4. | Longest cell | d. | Cyanobacteria |
| 5. | Prokaryotic cell | e. | Amoeba |
