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Questions and Answers
What is the primary function of the nucleus in a cell?
What is the primary function of the nucleus in a cell?
- To regulate gene expression and cell division (correct)
- To convert energy through respiration
- To produce proteins for cellular functions
- To transport materials within the cell
What does the nuclear envelope primarily protect?
What does the nuclear envelope primarily protect?
- Ribosomes during protein synthesis
- Cellular organelles from damage
- Enzymes responsible for metabolism
- DNA from damage (correct)
Which statement about the nucleus is true?
Which statement about the nucleus is true?
- It does not play a role in regulating gene expression.
- It is the main site for ATP production.
- It contains the cell's genetic material. (correct)
- It is responsible for cellular respiration.
In addition to housing genetic material, what role does the nucleus play?
In addition to housing genetic material, what role does the nucleus play?
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Which of the following correctly defines the role of the nucleus?
Which of the following correctly defines the role of the nucleus?
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Study Notes
Nucleus Function and Importance
- Acts as the control center of the cell, directing cellular activities.
- Houses genetic material, specifically DNA, vital for inheritance and cell function.
- Responsible for regulating gene expression, influencing which genes are turned on or off.
- Plays a key role in cell division, ensuring genetic material is accurately replicated and distributed.
Nuclear Envelope
- Encloses the nucleus, providing a protective barrier for the DNA.
- Helps prevent damage to genetic material from external factors, maintaining cell integrity.
- Composed of two lipid bilayers, which control the entry and exit of materials between the nucleus and cytoplasm.
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