Noah H unit 2

3. a substance or molecule that repels water
5. the process by which water or other solvents move through a semipermeable membrane
7. the net movement of anything
10. a group of similar cells and their extracellular matrix that perform a specific function
11. a biological catalyst and is almost always a protein
12. complex structures composed of multiple tissues that work together to perform specific functions in the body
15. a membrane that allows some substances to pass through while blocking others
17. the surface or material on or from which an organism lives, grows, or obtains its nourishment
18. the smallest structural and functional unit of an organism
19. a group of organs that work together to perform a specific function in the body

1. the movement of ions or molecules across a cell membrane into a region of higher concentration
2. the specific region on an enzyme where a substrate binds and undergoes a chemical reaction,
4. a substance formed as a result of a chemical reaction
6. a subcellular structure that has one or more specific jobs to perform in the cell
8. a group of atoms bonded together
9. the basic unit of a chemical element
13. a type of membrane transport that does not require energy to move substances across cell membranes.
14. a protein or nucleic acid that has lost its native structure and therefore its biological function,
16. a type of lipid that forms the cell membrane, consisting of a hydrophilic head