Nucleus, Nucleolus, and chromosomes

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Last updated 9:31 PM on 9/19/26
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12 Terms

1
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The nucleus is the ____ of the cell. (1)

Control center

2
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What surrounds the nucleus and what does that contain? (2)

A double membrane that contains pores

3
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The outermost membrane of the nucleus is continuous with what? (1)

The rough E.R

4
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Most cells have how many nuclei (2)

  • Most have one

  • Some have more than one (eg. muscle fibers)


5
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Where is the nucleolus located? (1)

Inside the nucleus

6
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What does the nucleolus consist of? (3)

DNA, RNA, Proteins

7
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Is it seperated from the nucleus by a membrane? (1)

No

8
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The nucleolus is the site of what? (1)

Ribosome assembly

9
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What are chromosomes composed of? (2)

  • DNA

  • Histone proteins


10
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What are the two ways chromosomes can be found? (2)

  • Thread-like and dispersed

  • Coiled and condensed


11
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What does it mean when chromosomes are found thread-like and dispersed? (1)

The Cell is not actively dividing

12
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When chromosomes are coiled/condensed, they are individually visible and thicker than thread like chromosomes, what does it mean when they are coiled up? (1)

The cell is actively dividing