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प्रश्न
Name the part of the cell concerned with the following :
Transmission of hereditary characters from parents to offspring
उत्तर
Chromosomes
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.
State the difference between eukaryotes and prokaryotes
Who coined the term “cell” ?
Write a short answer.
Why are mitochondria called the powerhouse of the cell?
What is cell theory? Name the three scientists whose work led to the formulation of the cell theory.
What is the function of the following?
Mitochondria
Match the items in column A with the appropriate items in column B:
| column A | column B |
| 1. Platform or workplace for the synthesis of proteins | a. Golgi complex |
| 2. A powerhouse of cells | b. Ribosomes |
| 3. Help in the formation of cell plate during cell division | c. Chloroplast |
| 4. Site for photosynthesis | d. Mitochondria |
| 5. Control tower of cell | e. Chromosomes |
| 6. A structure bearing genes | f. Nucleus |
When will you use a simple microscope and when, a compound microscope? Explain in detail how you will use them.
Make sketches of animal and plant cells which you observe under microscope.
