A sub-cellular structure is something found in a cell. An animal cells contains the following sub-cellular structures:
Cellmembrane
Nucleus
Ribosomes
Mitochondria
Cytoplasm
Cell membrane
It separates the interior of the cell from the environment outside. It is selectively permeable meaning it has control over which substances enter and exit the cell.
Nucleus
Contains chromosomes that contain the cells genetic material
Ribosomes
Responsible for synthesising (making) proteins
Mitochondria
Where aerobic respiration takes place. A process which uses glucose and oxygen to release energy.
Cytoplasm
Is a jelly like fluid that fills the cell. Where most of the cells chemical reactions take place.
Common types of animal cells
Skin cells
Muscle cells
Blood cells
Nerve cells
Fat cells
Differentiation
Animal cells differentiate early in development.
In mature animals, cells mostly divide to replace cells and repair tissues that are already present.
New tissues are rarely created by cell differentiation.
Aerobic respiration
glucose + oxygen -> carbon dioxide + water + energy
