LEVELS OF CELL ORGANISATION Flashcards
The first level of cell organisation is a CELL.
What is the second level called?
TISSUE
What is a tissue?
a group of similar cells working together to perform a certain job
a group of nerve cells work together to make nerve tissue to transmit messages around the body
The second level of cell organisation is a TISSUE
What is the third level of cell organisation?
ORGAN
a group of tissues working together make an organ
Name the main 9 organs found in the human body
ORGANS
- brain
- heart
- lungs
- liver
- intestine
- lungs
- stomach
- kidney
- bladder
The third level of cell organisation is an ORGAN
What is the fourth level of cell organisation called?
ORGAN SYSTEM
a group of organs working together make an organ system
Name the main organ systems in the human body
organ systems
- circulatory system
- respiratory system
- reproductive system
what does the circulatory system do?
it transports materials around the body in blood
what does the respiratory system do?
takes in oxygen (O2)
&
removes carbon dioxide (CO2)
what does the reproductive system do?
produces new organisms
The fourth level of cell organisation is an ORGAN
what is the fifth and final level called?
an organism
like a human, animal, plant
Name the 3 organs found in plants
ORGANS
- stem
- leaf
- root
