Question

Differentiate between: Organ and organ system.

Answer 1

1. Organ: Tissue aggregation to perform a single function leads to the formation of an organ.
2. Organ system: In an organ system, organs come together to perform a group of functions.

Organ	Organ system
1. An organ comprises a group of tissues.	1. An organ system comprises a group of organs.
2. Organ performs a specific function.	2. Organ system performs multiple functions.
3. Example: Heart, kidney, lungs, etc.	3. Example: Digestive system, respiratory system, circulatory system, etc.