Biology Revision

1. Drooping or inelastic through lack of water.
4. Molecules that make up a cell membrane.
6. Made of cellulose material.
7. A statement that can be tested.
10. Controls all of the activities of a cell and contains DNA.
14. Passive process where molecules move from areas of high concentration to areas of low concentration.
15. The variable that the experimenter changes or compares.
16. Solution that has a high solute concentration
18. Passive process where water molecules move across a semi permeable membrane from areas of high water concentration to areas of low water concentration.
21. Packages proteins ready for exiting a cell.

2. Protein that allows bulk water into a cell.
3. The structure in a plant cell where photosynthesis takes place.
5. Solution which is equal in water concentration to a cell.
6. Cell structure that allows substances to enter and exit a cell.
8. A swollen or distended cell.
9. Cell structure which is the source of energy production of a cell.
11. Solution that has a low solute concentration.
12. The variable that the experimenter is measuring or recording.
13. The variables that need to be kept the same in an experiment.
17. Process in plant cells where the membrane pulls away from the cell wall in a hypertonic solution.
19. Synthesises proteins
20. Stain used to turn starch blue/black.