Cell Organisation Flashcards
How do cells become specialised?
Differentiation
When does differentiation occur?
During the development of a multicellular organism
Why do large multicellular organisms have different organ systems?
For exchanging and transporting materials
What is a tissue
A group of similar cells that work together to carry out a particular function and can include more than one type of cell
What three types of tissue is found in mammals?
- muscular tissue
- glandular tissue
- epithelial tissue
What is the function of muscle tissue in the digestive system?
Moves the stomach wall to churn up food
What is the function of glandular tissue in the digestive system?
Makes digestive juices to digest food
What is the function of epithelial tissue in the digestive system?
Covers the outside and inside of the stomach
What is an organ system
A group of organs working together to perform a particular task
What 5 organs make up the digestive system
- glands
- stomach
- liver
- small intestine
- large intestine
What function do the glands have within the digestive system?
Produce digestive juices
What function does the stomach have within the digestive system?
Digests food
What function does the liver have within the digestive system?
Produces bile
What function does the small intestine have within the digestive system?
Absorbs soluble food molecules
What function does the large intestine have within the digestive system?
Absorbs water from undigested food, leaving faeces
