Search over 10,000 free study notes

Counter current exchange is the mechanism in which oxygen enters the blood in fish. Blood flows in the opposite direction to the water that flows over the fish's gills. Fish gills have gill filaments and ...

6CO2 + 6H2O => (light energy) => C6H12O6 + 6O2

There are 3 types: conservative, semi conservative and dispersive.conservative entails the original DNA strand remaining intact with a whole newly synthesised DNA strand being formedsemi conservative enta...

Following transcription and splicing, mature mRNA travels to the ribosome and displays the start codon. A tRNA molecule which has an anti codon that is complementary to the mRNA start codon matches with t...

Phagocytosis is a non-specific cellular defence mechanism by the body which is initiated when a pathogen invades the body and has antigens which are detected as antigenic or foreign – note that antigens a...