Tissues, Organs And Organ System Flashcards
What is differentiation?
It is the process by which cells become specialised in-order to carry out a particular function.
What do large multi cellular organisms have?
They have different systems inside them for exchanging and transporting materials.
What is a tissue?
A tissue is a group of similar cells that work together to carry out a particular function
Examples of tissues
Muscular tissue - contracts to bring about movement
Glandular tissue - produces substances like enzymes and hormones
Epithelial tissue - covers parts of the body
What is an organ?
An organ is a group of different tissues that work together to perform a certain function
What tissues does a stomach organ have?
Muscular tissue - to churn the food
Glandular tissue - produces digestive juices to digest food
Epithelial tissue - covers the outside and the inside of the stomach
What is an organ system?
An organ system is a group of organs that work together to perform a particular function.
Examples of an organ system
The digestive system is an example of a system in which humans and other mammals exchange substances with the environment. it includes…
- Glands, such as the pancreas and salivary glands, which produce digestive juices
- Stomach and Small Intestine, where digestion occurs
- Liver, which produces bile
- Small Intestine, where the absorption of soluble food occurs
- Large Intestine, where water is absorbed from the undigested food, producing faeces.
Name the organs in a plant.
Stems, Roots and Leaves
Examples of plant tissues
Epidermal tissues, which cover the plant
Mesophyll, which carries out photosynthesis
Xylem and Phloem, which transport substances around the plant.
