Unit 2 Steinbrunner

6. the diffusion of water across a membrane
7. what tissue makes when it is combined
9. the region of an enzyme where substrate molecules bind and under go a chemical reaction
10. the water loving head of a phospholipid
13. when an active sites shape is changed
15. a method of moving molecules across the membrane that does not require the cell to spend any energy
17. when border patrol only allows certain molecules in or out of the cells
20. the increase in the rate of chemical reaction by lowering its activation energy
21. what all organ systems combine to make

1. the water fearing tail of a phospholipid
2. reactant molecules that enzymes bind to
3. when molecules naturally move from being clustered together to being spaced out
4. cell membrane is made of these
5. what all the organs make up
6. what molecules combine to make
8. An organized group of atoms
11. proteins that speed up chemical reactions/lower the activation energy
12. one of the main results in a chemical reaction
14. what you get when cells combine
16. when cells spend energy to move molecules across the membrane through a transport protein
18. Basic units of mater
19. basic unit of life