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प्रश्न
Distinguish between the following pairs of terms :
Centrosome and chromosome
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उत्तर
| Centrosome | Chromosome | ||
| (i) | It is a clear area of cytoplasm close to the nucleus, from which spindle fibres develop during cell division. | (i) | Chromosomes carry hereditary information or genes, which transmit genetic characters from parents to offspring. |
| (ii) | A centrosome is found only in an animal cell. | (ii) | Chromosomes are found in the nucleus of both animal and plant cells. |
| (iii) | These are found outside the nucleus. | (iii) | These are found inside the nucleus. |
| (iv) | It consists of centrioles and centrospheres. | (iv) | It consists of nucleic proteins and nucleic acids |
संबंधित प्रश्न
Where do the ribosomes get synthesized?
Who am I?
I support the cell, but I am not a cell wall. I have a body resembling a net.
Who am I?
I am chemical factory of the cell.
Who gives me the colour? (Select the correct option)
| a. Red tomato | 1. Chlorophyll |
| b. Green leaf | 2. Carotene |
| c. Carrot | 3. Anthocyanin |
| d. Violet | 4. Lycopene |
Name the part of the cell concerned with the following :
Initiation of cell division
How many chromosome pairs are found in human cells?
What is the difference between an organ and an organelle?
Distinguish between the following pair of terms:
Protoplasm and cytoplasm
Distinguish between the following pairs of terms :
Plant cell and animal cell
State the major function of the following :
Golgi apparatus
Fill up the blank with the terms given below
Plastids contain ______.
Fill in the blanks:
The jelly-like fluid that surrounds the nucleus of a cell is called ______.
Write a short answer.
Why is the cell membrane called selectively-permeable membrane?
Who says that cell is the biological unit of body structure?
Identify the cellular structure with the help of the following clue:
It destroys foreign substances.
Identify the cellular structure with the help of the following clue:
It contains chromatin fibres.
Define the following term:
Organelles
Define the following term:
Protoplasm
