Biology - Levels of organisation Flashcards
Organelle
Component in a cell carrying out a particular task
Chloroplast
5 levels of organisation.
Organelle Cell Tissue Organ Organ system
Cell
Basic functional unit of a living organism
Sensory neurone
Tissue
Group of cells carrying out a particular function
Retina
Organ
Group of tissues carrying out a particular task
Leaf
Organ system
Group of organs working together to perform an overall function.
Circulatory System
List 7 organ systems.
Digestive Respiratory Circulatory Excretory Nervous Endocrine Reproductive
Digestive system
Digests food
Respiratory system
Exchange O2 in to CO2
Circulatory system
Transports substances around the body
Excretory system
Filters waste materials from the blood
Nervous system
Co-ordinates body actions
Endocrine system
Secrete hormones
Reproductive system
Produce sperm in males, ova in females