Animal cells
Biology: Edexcel IGCSE, topic 2.1.6
Animal Cell
Sub-cellular structures are things found in a cell. An animal cell contains the following sub-cellular structures:

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).

Nucleus
- The nucleus contains chromosomes (which contain the cell's genetic material).

Ribosomes
- Ribosomes are responsible for synthesising (making) proteins.

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.

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

Common types of animal cells
- Skin Cells
- Muscle Cells
- Blood Cells
- Nerve Cells
- Fat Cells
Test yourself on Animal cells
Which of the following is a type of animal cell?