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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
Give functions.
Cytoplasm
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 |
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.
Fill in the blanks :
Very thin flexible, a living membrane which is differentially permeable, is called__________.
Fill in the blanks :
_______ are hereditary units.
What is the difference between an organ and an organelle?
Distinguish between the following pairs of science :
Cell wall and cell membrane
State the major function of the following :
Glycogen granule
Put a tick mark (✓) against the correct alternative in the following statement:
The organelle that controls all activities in
Put a tick mark (✓) against the correct alternative in the following statement:
A cell that is spherical in shape is
Put a tick mark (✓) against the correct alternative in the following statement:
The vacuole contains:
Fill in the blanks:
______ membrane is a selectively permeable membrane.
Write true or false for each statement. Rewrite the false statements correctly:
Vacuoles are filled with a fluid called nucleoplasm
Identify the cellular structure with the help of the following clue:
It is made up of lipoproteins.
Identify the cellular structure with the help of the following clue:
It contains chromatin fibres.
Give two examples of cell organelles.
Name the following:
The part of cytoplasm which is devoid of the organelles.
