Search over 10,000 free study notes

Large surface area: Branches off, starting with bronchioles until microscopic in size with air filled sacs called alveoli. The alveoli also have massive capiliary networks surrounding them so there is a big ...

Glycolysis is the process by which cells create ATP from glucose. It occurs in all cells. Glycolysis is an anaerobic process, which, means it may occur even without oxygen. Glucose is converted to 2 molecule...

Action potentials are the way in which information is conveyed along the length of a nerve cell and between nerve cells. At rest, the nerve cells membrane potential is around -70mV. During an action potentia...

Enzymes are proteins that are catalysts of chemical reactions. Chemistry shows us that catalysts are non-consumable substances that reduce the activation energy necessary for a chemical reaction to occur. En...

There are two main parts to the synoptic essay, the subject/specification content which will probably make up around 80-90% of your essay, and then the extra content, which is composed of things above the sy...