Search over 10,000 free study notes

Antibodies and antigens are made out of proteins. Proteins have a specific primary structure. The primary structure is the sequence of the amino acids that make up the protein. This sequence is specific t...

There are four bases- ATGC adenine, thymine guanine and cytosine.

Each base is attached to a deoxyribose sugar and a phosphate sugar. This makes up a nucleotide. Three nucleotides are called a codo...

Menstruation in women is under the influence of the hypothalamic-pituitary-ovarian axis, or HPO axis. The pituitary gland secretes follicle-stimulating hormone (FSH) and luteinising hormone (LH), which ac...

The first of the two major theories are Lock and Key mechanism, which describes the perfect design of the enzyme active site to that of its substrate so that they can immediately interact on contact witho...

The heart is composed of a specialied muscle type called cardiac muscle. This has unique properties such that each muscle cell is connected together by gap junctions in their cell membranes (electrical sy...