Topic 4: Systems Flashcards
What is a Molecule?
Two or more atoms joined together
What is an Organelle?
A structure within a cell with a specific function
What are Cells?
The smallest unit of life that makes up all living things
What is Cellular Respiration?
A chemical reaction involving oxygen that moves energy in glucose into the compound ATP
What is a System?
A group of organs working together
What is Respiratory System?
The system which allows a human to breathe
What is a Tissue?
A group of cells performing the same task
What is the Circulatory System?
The system used to pump blood around the body
What are Blood Cells?
A cell found in blood. Can be a red blood cell or white blood cell
What are Blood Vessels?
Veins, arteries or capillaries that flows blood around the body
What is the Heart?
A muscle which pumps blood around the body
What are Arteries?
Hollow tubes with thick walls carrying blood pumped by the heart
What are Capillaries?
Small tubes carrying blood to body cells. Every cell is supplied with blood through capillaries
What are Veins?
Tubes used to move blood to the heart
What is the Digestive System?
A system that allows us to eat and digest food and also extracts nutrients from the food to give to the body
What is the Excretory System?
The system that is used to remove wastes from the body
What is a Musculoskeletal System?
The system containing bones and various muscles
What is Plasma?
The yellow liquid in blood that carries water, minerals, food and waste to and from cells
What are Red Blood Cells?
Cells that transport oxygen all over the body