Search over 10,000 free study notes

DNA is replicated by semi-conservative replication meaning that each double stranded DNA molecule replicates to form two new double stranded molecules - each with one original and one new...

Long/deep roots, stomata in pits, rolled leaves, tiny hairs on leaves, no leaves (cacti).

The saturation curve of haemoglobin shows positive cooperativity. Initially, the porphyrin ring of the haem prosthetic group in haemoglobin is dome-shaped. When one molecule of oxygen binds one of the fou...

Myelination of an axon makes propagation of action potentials along it much faster. In unmyelinated axons, the action potential is constantly regenerated by active propagation, with the depolarisation cau...

Mitosis is the process in which a cell divides into two new cells. Cells contain DNA in the form of chromosomes as well as organelles such as ribosomes and mitochondria. Therefore if a cell is to divide i...