Parts of the nucleus

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Author:
kc97
ID:
247297
Filename:
Parts of the nucleus
Updated:
2016-01-16 19:24:34
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Parts nucleus
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AS Biology Unit 2
Description:
Parts of the nucleus
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  1. What the Nuclear envelope? (2 marks)
    • A double membrane that surrounds the nucleus.
    • Outer layer is continuous with endoplasmic membrane which has ribosome on its surface.
  2. What the function of the Nuclear envelope? (2 marks)
    • It controls the entry and exit of material in the nucleus.
    • It where the reaction in the nucleus take place
  3. What is the function nuclear pores and what size are they as well as how many? ( 3 marks)
    • Allows molecules out of the nucleus.
    • 40-100 nanometres
    • 3000 Pores
  4. What is the Nucleoplasm?
    A granular, jelly like material that makes the bulk of the nucleus.
  5. What is Chromatin? ( 2 marks)
    • DNA found in the nucleus.
    • The diffused form that chromosomes take up when cell aren't dividing
  6. What is the Nucleolus?
    A small spherical body within the nucleoplasm.
  7. What the function of a nucleolus? (2 marks)
    • It manufactures ribosomal RNA
    • It manufactures ribosomes
  8. A double membrane that surrounds the nucleus.
    Outer layer is continuous with endoplasmic membrane which has ribosome on its surface.
    It controls the entry and exit of material in the nucleus.
    It where the reaction in the nucleus take place
    Nuclear Envelope
  9. Allows molecules out of the nucleus.
    40-100 nanometres
    3000 Pores
    Nuclear pores
  10. A granular, jelly like material that makes the bulk of the nucleus.
    Nucleoplasm
  11. DNA found in the nucleus.
    The diffused form that chromosomes take up when cell aren't dividing
    Chromatin
  12. A small spherical body within the nucleoplasm.
    It manufactures ribosomal RNA
    It manufactures ribosomes?
    Nucleolus

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