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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
If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?
Where do the ribosomes get synthesized?
Give functions.
Nucleus
Name the part of the cell concerned with the following :
Liberation of energy
State whether the following statement is true (T) or False (F):
All animal cells contain a cell wall.
State whether the following statement is true (T) or False (F):
Centrosome occurs in animal cells.
State whether the following statement is true (T) or False (F):
Anthocyanins are the pigments of flowers, which are dissolves in cell-sap.
_________ consists of membranous sacs and secrets 40 types of digestive enzymes.
Fill in the blanks :
_______ are hereditary units.
State the major function of the following :
Lysosomes
State the major function of the following :
Cytoplasm:
Put a tick mark (✓) against the correct alternative in the following statement:
The organelle that controls all activities in
Write true or false for each statement. Rewrite the false statements correctly:
Ribosomes are the sites of respiration in a cell
Write true or false for each statement. Rewrite the false statements correctly:
Golgi bodies form a network of tubes which run throughout the cytoplasm
Write true or false for each statement. Rewrite the false statements correctly:
Vacuoles are filled with a fluid called nucleoplasm
Give one main function of the following:
Chromosomes
Who says that cell is the biological unit of body structure?
A typical cell consists of ______ major parts.
Identify the cellular structure with the help of the following clue:
Supportive framework for the cell.
