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Stomata can be thought of as gates. This is why the size of the guard cells is so important. How the guard cells change in size is a simple matter of how much fluid they can hold - their turgor. Osmosis is t...

Firstly, antibiotic resistance has to be gained by a bacterium through the mutation of a gene. This can occur due to, for example, the overuse of antibiotics or failure to complete a full course of antibioti...

Osmosis is the movement of water molecules from an area of high water concentration to an area of low water concentration through a partially/selectively permeable membrane (PPM) . It occurs because of conce...

Facilitated diffusion doesn't require ATP whereas active transport does. This is because active transport involves the movement of particles against its concentration gradient, whereas facilitated diffusion ...

The process by which our bodies maintain a constant internal environment is homeostasis. This includes things such as body temperature, blood glucose levels and pH levels. This is important because there a v...