Timed A-level Biology Essay by A* Student - Movement of substances within an organism

A-level biology essay titled “The movement of substances within an organism”.

Written by a year 13 biology student in 2018 who achieved an A* in biology A-level and graduated from Cambridge University with a First in Natural Sciences. Written in 45 minutes without access to notes. Essay is 1253 words long .

Featuring the following content:
Oxygen transport
Movement of white blood cells
Blood clotting
Mass flow hypothesis in plants
Nervous system
Toxins

Useful for revision and for gauging the quality of an essay produced under timed conditions by an A* student.