Search over 10,000 free study notes

The ileum is lined with simple cuboidal epithelium. This means there is a short diffusion pathway from the lumen of the gut to the surrounding blood vessels. The lining epithelia also has villi and the ep...

Transcription is the process where RNA is copied from DNA. DNA is a made up of two strands which makes a double helix. In order for transcription to occur, the two DNA strands must come apart. The DNA str...

An enzyme called DNA helices breaks the hydrogen bonds between the bases on two polynucleotide strands of DNA, forming two single strands. Each original strand acts as a template for a new strand. Complem...

When two neurones meet we have a something that acts like a bridge to connect the two neurones together and this is called a synapse. When an impulse is traveling through one neurone and wants to continue...

The primary structure is the sequence of amino acids. It defines the role of the protein as all the other structures are based off of it.
The secondary structure dictates whether the protein is folde...