science

6. a plastid that contains chlorophyll and in which photosynthesis takes place
8. site of protein synthesis, and transport
11. containing degradative enzymes enclosed in a membrane.
12. outer layer of extra protection for plant cells
14. the basic building blocks of all living things.
15. Power house of the cell
16. study of life
18. the fundamental movement of ions and other molecular substances within the cells along the concentration gradient (energy)
19. a molecule that may react chemically to another molecule
20. region on an enzyme that binds to a protein or other substance during a reaction.

1. fiber, starches and sugars
2. Brain of the cell
3. class of fatty acids that are fatty acids
4. any process in which relatively small molecules, called monomers, combine chemically to produce a very large chainlike or network molecule
5. is the movement of water molecules from a solution with a high concentration of water to a solution with a lower concentration of water
7. Found in Dna and Rna
9. substance produced by all living organisms (almost always a protein)
10. the semipermeable membrane surrounding the cytoplasm of a cell
13. movement of molecules across a membrane into area of higher concentrations(requires energy)
17. factory where proteins received by the ER are processed further and sorted for transport