Year 10

Across:

7. The movement of particles through a cell membrane from a region of low concentration to a region of higher concentration using energy from respiration, , against a concentration gradient

8. Shouldn't be allowed to build up, molecules dissolve in water and lower the pH of cells

10 Where oxygenated blood leaves the heart

12. Makes up the layers of fatty acids (plaque) that build up in the coronary arteries

14. organ that excretes urea, water, and mineral ions

Down:

The net movement of molecules from a region of higher concentration to a region of lower concentration, down a concentration gradient

2. Glucose is reabsorbed at this tubule

3 A diet too high in this is the main cause of coronary heart disease

4 When this is high, it is a risk factor of coronary heart disease

5. This membrane is .... it only allows some molecules to cross

6. Deoxygenated blood enters the right atrium through the ...

9 Shape of red blood cells, increases surface area to volume ratio for higher rate of diffusion

11 The net movement of water molecules from a region of higher water potential to a region of lower water potential