Vocabulary

3. a claim supported by evidence
6. a set of interacting parts forming a complex whole
7. a category of large molecules that perform important functions inside living things
8. molecules that are the building blocks of proteins
9. a molecule made of carbon and oxygen atoms
10. a molecule that organisms get from the air or water around them and use to release energy
11. the body system that takes in food and breaks it down
14. the body’s use of molecules for energy and growth
15. a type of energy storage molecule made of many glucose molecules connected together
17. a molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms

1. the body system that transports molecules to and from all cells of the body
2. the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body
4. the chemical reaction between oxygen and glucose that releases energy into cells
5. the body system that takes in oxygen and releases carbon dioxide
12. a group of atoms joined together in a particular way
13. a type of cell that receives and sends messages from the body to the brain and back to the body
16. a collection of tissues that structurally form a functional unit specialized to perform a particular function.