Science

5. Net diffusion of water molecules across a partially permeable membrane from a solution with a high water potential to a solution with a low water potential.
6. A positively charged sub-atomic particle located in the nucleus of an atom.
8. Organisms that cause disease. Many common animal and plant diseases are caused by bacteria or viruses but a few species of protoctists are pathogens.
11. A pure substance composed of two or more chemical elements which are chemically bonded together.
12. Changes detected in the organism’s surroundings.
13. A negatively charged particle found in the shells of an atom.
14. The ‘storage area’ of the plant cell, containing sap.

1. The act of discharging undigested food as faeces.
2. The passive, net movement of molecules from a high concentration to a low concentration, down a concentration gradient.
3. The net movement of molecules moving from a low concentration to high concentration, against a concentration gradient, using energy.
4. The site where protein synthesis occurs, which is the act of making protein.
7. A gas transitioning into a liquid, a process carried out in the states of matter.
9. How to find the density of a tangible object
10. The term used to describe red blood cells bursting.