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Question
Name the parts of the nucleus and state their functions?Why is the nucleus called as controller of the cell?
Name the parts of the nucleus and state their functions?Why is the nucleus called as controller of the cell?
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Solution
- Nucleus consists of three main parts—nuclear membrane, nucleoplasm and nucleolus
- Nuclear pore:Helps in the movement of substances in and out of the nucleus.
- Nuclear membrane:The protective barrier of the nucleus.
- Nucleoplasm:The cytoplasm of the nucleus.
- Nucleolus:Core of the nucleus where ribosomes are synthesised.[ 3 Marks]
Functions of Nucleus:
- It plays an important role during cell division.
- It contains thread-like structures called chromosomes.
- The chromosomes are made of genes (DNA) that help in the inheritance or transfer of characters from the parents to the offspring.
- Since the nucleus controls all the activities of the cell, it is called as controller of the cell. [2 Marks]
- Nucleus consists of three main parts—nuclear membrane, nucleoplasm and nucleolus
- Nuclear pore:Helps in the movement of substances in and out of the nucleus.
- Nuclear membrane:The protective barrier of the nucleus.
- Nucleoplasm:The cytoplasm of the nucleus.
- Nucleolus:Core of the nucleus where ribosomes are synthesised.[ 3 Marks]
Functions of Nucleus:
- It plays an important role during cell division.
- It contains thread-like structures called chromosomes.
- The chromosomes are made of genes (DNA) that help in the inheritance or transfer of characters from the parents to the offspring.
- Since the nucleus controls all the activities of the cell, it is called as controller of the cell. [2 Marks]
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