Specialisation and Organisation of Cells

Prokaryotic Cells

Unicellular organisms that need to produce energy and remove wastes to survive.

Eukaryotic Cells

Complex, multicellular organisms that come together to form larger structures.

Specialised Cells

Cells that perform specific roles that other cells cannot due to their shape or structure.

Epithelial Tissue

Tissue made of tightly packed cells that cover the surface of organs and body structures.

Connective Tissue

Tissue that binds and supports other tissues or organs, and can transport nutrients and store energy.

Muscle Tissue

Tissue that makes up muscle and allows for movement; includes skeletal, cardiac, and smooth muscle.

Nervous Tissue

Tissue that regulates and controls bodily functions through nerve impulses.

Hierarchy of Organisation

Levels of complexity in multicellular organisms: Cells -> Tissues -> Organs -> Systems -> Organism.

Homeostasis

The regulation of internal conditions in organisms, including body temperature and water balance.

Malfunctions in Homeostatic Mechanisms

Examples include type 1 diabetes, hypoglycaemia, and hyperthyroidism.