Zusammenfassung der Ressource
tissues, organs + organ systems
- organs in animals
- tissues
- during the development of a multicellular organism, cells
differentiate so they can carry out different functions
- differentiation is when a cell becomes a specialised type of cell
- a tissue is a group of specialised cells that have a similar structure + function
- the diagram above shows some examples of tissues + their functions
- organs
- organs are made of tissues
- a particular organ may contain several different tissues
- e.g. the stomach contains:
muscular tissue, glandular tissue
and epithelial tissue
- the digestive system
- organ systems are groups of organs
that carry out a particular function
- the human body has several organ systems,
including: nervous system, respiratory system,
reproductive system, digestive system
- the digestive system is an example of an organ
system in which humans use and other
mammals exchange substances with the
environment
- the digestive systems main tissues and organs:
- pancreas and salivary glands
- stomach
- liver
- small intestine
- large intestine
- organs in plants
- plants are multicellular organisms, like animals
- they usually contain differentiated cells, tissues and organs
- organs
- examples of plant organs include:
- roots
- stems
- leaves
- leaves are adapted to absorb sunlight for
photosynthesis