B1- Organisation Flashcards
What is it called when an unspecialised cell becomes specialised
Differentiation
What type of organism are humans?
Large multi cellular organisms
What is a tissue?
A group of similar cells that work together to carry out a particular function, it can include more than one type of cell
What does muscular tissue do?
Contracts to move what it is attached to
What does glandular tissue do?
Makes and secretes chemicals, like enzymes and hormones
What does epithelial tissue do?
Covers some parts of the body such as the gut
What is an organ?
A group of different tissues that work together to perform a function
What is the digestive system made up of?
Mouth and salivary glands
Oesophagus
Stomach
Small intestine
Large intestine
Rectum
Anus
What makes up the circulatory system?
Heart
Blood vessels
Arteries
Capillaries
Veins
What makes up the respiratory system?
Lungs
Diaphragm
Bronchus
Trachea
Larynx
What are enzymes?
Biological catalysts
What is a catalyst?
A substance that increases the speed of a reaction without being changed or used up in the reaction
