Search over 10,000 free study notes

Bacteria are cells which have natural genetic mutations, thus some bacteria will have advantageous mutations in their DNA. The use of antibiotics in hospitals create a selection pressure on the bacteri...

After reading this question we know that exercise causes body temperature to rise. The question is asking how the brain monitors body temperature, with the key words being 'explain' an...

Primary - where amino acids are in the correct order in the polypeptide chain.

Secondary - where small structures within the chain begin to form (including alpha helices and beta pleated ...

Inside the sarcomere, the myosin filament and actin filament slide over eachother making the sarcomere shorter- at rest there is no cross bridge, actin and myosin are apart, ADP + Pi are bound to myosin- ...

Enzymes have an active site and allosteric sites. Allosteric sites regulate the activity of the enzyme.An allosteric enzyme could be- an allosteric activator which binds and stabilises the active form of ...