Cellular Organisation Flashcards
What is a cell
The smallest unit of an organism
Give an example of a cell in plants
Palisade cell
Give an example of cell in animals
Glandular cells
Define tissue
A tissue is a group of cells with a similar structure and function, which all work together to do a particular job
Give an example of tissue in plants
An example of tissue in plants is ‘leaf epithelium’
Give an example of tissue in animals
An example of tissue in animals is the ‘stomach lining’
Define organ
An organ is a group of different tissues, which all work together to do a particular job
Give an example of organ in plants
Leaves
Give an example of organ in animals
Stomach
Define organ system
An organ system is a group of different organs which all work together to do a particular job
Give an example of an organ system in plants
Photosynthetic system
Give an example of organ systems in animals
Digestive system
Define organism
An organism is an individual plant, animal or single-celled organism
Give an example of an organism in plants
Daffodil
Give an example of organism in animals
Human
Name the levels of organisation from smallest to biggest
Cells, tissues, organs, organ system and organism
What are the four basic types of tissues in the human body
Epithelial tissue
Muscular tissue
Connective tissue
Nerve tissue
State the function of Epithelial tissue
The epithelial tissue covers and lines body surfaces, cavities and ducts
State the function of Muscular tissue
The muscle tissue tightens and loosens itself to move other body parts.
State the function of Connective tissue
The connective tissue connects and supports other parts of the body.
Give 4 examples of connective tissue
Blood, bone, fat and cartilage
State the function of Nerve tissue
The nerve tissue carries messages back and forth between the brain and the rest of the body.
State the function of Glandular tissue
Glandular tissue produces digestive juices that break down food
State the tissues that make up the stomach - and their functions
Muscular tissue - to churn the food and digestive juices of the stomach together
Glandular tissue - to produce the digestive juices that break down food
Epithelial tissue - covers the inside and the outside of the stomach
