| Front | Define tissue culture |
| Back | A method of growing living tissue or cells in a suitable medium to produce clone plants. |
| Front | Define secondary sexual characteristics |
| Back | Features that appear during puberty and differ between males and females e.g. voice changes, development of breasts, facial hair. |
| Front | How does the surface area of the membrane affect the rate of diffusion? |
| Back | As the surface area increases so does the rate of diffusion as there is more space for the particles to move through. |