Advertisements
Advertisements
प्रश्न
Name the part of the cell concerned with the following :
Transmission of hereditary characters from parents to offspring
Advertisements
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.
Match the name of the organelle given in Column A with its function given in Column B.
| Column A (Organelle) | Column B (Function) | ||
| 1 | leucoplast | a | help in cell division |
| 2 | nucleus | b | transport of material |
| 3 | ribosomes | c | making food |
| 4 | mitochondria | d | digesting foreign bodies |
| 5 | endoplasmic reticulum | e | storage of starch and proteins |
| 6 | golgi bodies | f | making the cell turgid |
| 7 | chloroplast | g | making proteins |
| 8 | centrosome | h | controlling all the vital activities of a cell |
| 9 | vacuole | i | releasing energy |
| 10 | lysosomes | j | synthesis of cell wall in a plant cell |
Write a short answer.
Why are mitochondria called the powerhouse of the cell?
What is the function of the following?
Ribosomes
Name the different organelles in a cell?
Answer the following question.
Why is the cell called the structural and functional unit of life?
New cells are produced from the existing cells.
Make sketches of animal and plant cells which you observe under microscope.
Write about the contribution of Robert Hooke in cell biology.
Robert Hooke published a book named ______ in the year 1665.
