Biology Midterm

4. diffusion of water molecules across a semipermeable membrane from an area of higher water concentration to an area of lower water concentration
5. anaerobic process by which ATP is produced by glycolysis
7. membrane-bound structure within chloroplasts that contains chlorophyll and other light-absorbing pigments
9. movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration
10. region of condensed chromosome that looks pinched & where spindle fibers attach during meiosis and mitosis
11. cell that has a nucleus and other membrane-bound organelles
12. substance in which solutes dissolve and that is present in greatest concentration in a solution

1. molecule that forms a double-layered cell membrane & is made of a glycerol, phosphate group, & two fatty acids
2. specific region of DNA that codes for a particular protein
3. cell that does not have a nucleus or other membrane-bound organelles
6. substance that dissolves in a solvent and is present at a lower concentration than the solvent
8. light-absorbing pigment molecule in photosynthetic organisms
13. protein that catalyzes chemical reactions for organisms