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Questions and Answers
What is the function of the nucleolus?
What is the function of the nucleolus?
- Exchanges substances
- Stores genetic information
- Controls the cell cycle
- Forms ribosomes (correct)
What is the nuclear envelope made of?
What is the nuclear envelope made of?
- Single membrane
- Triple membrane
- No membrane
- Double membrane (correct)
What is found within the karyoplasm?
What is found within the karyoplasm?
- Chromatin and nucleolus (correct)
- A nuclear membrane
- Cytoplasm
- Cell membrane
What is the liquid substance inside the nucleus called?
What is the liquid substance inside the nucleus called?
What is the hereditary material found in the nucleus?
What is the hereditary material found in the nucleus?
What does chromatin transform into during cell division?
What does chromatin transform into during cell division?
What is the cell content around the nucleus called?
What is the cell content around the nucleus called?
What does the nucleus control?
What does the nucleus control?
What kind of structure is the nucleus considered to be?
What kind of structure is the nucleus considered to be?
What structure allows the nucleus to communicate with the cytoplasm?
What structure allows the nucleus to communicate with the cytoplasm?
Flashcards
What is the nucleus?
What is the nucleus?
A structure of the cell, not considered an organelle in the ЕГÐ. It's separated from the cytoplasm by the nuclear envelope.
What is the function of the nuclear envelope?
What is the function of the nuclear envelope?
Double membrane with numerous pores that separates the nucleus from the cytoplasm.
What are nuclear pores?
What are nuclear pores?
Pores in the nuclear envelope that allow the nucleus to communicate with the cytoplasm.
What is karyoplasm?
What is karyoplasm?
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What is chromatin?
What is chromatin?
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What is the purpose of the nucleolus?
What is the purpose of the nucleolus?
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What is the cytoplasm?
What is the cytoplasm?
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What are chromosomes?
What are chromosomes?
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What does the nucleus control?
What does the nucleus control?
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Study Notes
- In the Unified State Exam (USE), the nucleus is not considered an organelle; it is a separate structure of the cell.
- The nucleus is separated from the cytoplasm by the nuclear envelope, which is a double membrane with numerous pores.
- The nucleus communicates with the cytoplasm of the cell through the pores in its envelope.
- The liquid inside the nucleus is called karyoplasm.
- The cytoplasm contains everything within the cell except for the nucleus.
Nuclear Components
- Chromatin and the nucleolus are immersed in the karyoplasm.
- Chromatin is the hereditary material of the cell and contains DNA.
- During cell division, chromatin transforms into chromosomes.
- The nucleolus forms ribosomes.
Nuclear Function
- The nucleus stores genetic information.
- It controls the cell cycle (division).
- It controls metabolism, or in simpler terms, life activity.
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