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प्रश्न
Fill in the blank with a suitable word:
The single-celled alga ______ measures 10 cm in length.
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उत्तर
The single-celled alga Acetabularia measures 10 cm in length.
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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.
Fill in the blanks:
Organisms which are made up of a single cell are called ______ organisms.
Write a short answer.
What is the relationship between growth and cell division?
What is cell theory? Name the three scientists whose work led to the formulation of the cell theory.
Justify the statement "cell is the basic unit of life"
Fill in the blank with a suitable word:
DNA is an abbreviated form of ______.
the question has four options. Choose the correct answer:
Mitochondria were first seen by
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 |
Who proposed the "Cell theory"?
