2.1.6

Animal cells

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Animal Cell

Sub-cellular structures are things found in a cell. An animal cell contains the following sub-cellular structures:

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Cell membrane

  • The cell membrane separates the interior (inside) of the cell from the environment outside.
  • It is selectively permeable (it can control substances moving in and out of the cell).
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Nucleus

  • The nucleus contains chromosomes (which contain the cell's genetic material).
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Ribosomes

  • Ribosomes are responsible for synthesising (making) proteins.
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Mitochondria

  • Mitochondria are the site of aerobic respiration in eukaryotic cells.
  • Aerobic respiration (process which uses sugar and oxygen to release energy) releases energy in the mitochondria.
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Cytoplasm

  • Cytoplasm is a jelly-like fluid that fills the cell.
  • It is where most of the cell’s chemical reactions take place.
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Common types of animal cells

  • Skin Cells
  • Muscle Cells
  • Blood Cells
  • Nerve Cells
  • Fat Cells

Jump to other topics

1The Nature & Variety of Living Organisms

2Structure & Functions in Living Organisms

3Organism Functions

3.1Respiration

3.2Gas Exchange

3.3Transport

3.4Excretion

3.5Coordination & Response

4Reproduction & Inheritance

5Ecology

6Biological Resources

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