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Proteins have three or four levels of structure, in increasing complexity. Primary structure is the sequence of amino acids that the protein is made up of; secondary structure is either alpha-helices or b...

Binding Energy is the Energy released or used when an Atom is formed or broken respectively Difference in Binding Energy = 0.9 Mev 235 nucleons in 1 atom of Uranium235 x 0.9 Mev = 211.5 MeV per Event 210 ...

a)i Factor Theorem states that if a polynomial has a factor of X-a, when a is substituted in, the polynomial = 0. Therefore substitute 3 into the polynomial, which then equals 0 ii Long Devision- Unsure h...

A multiple hazard zone is a location where two or more geophysical and hydrometeorological hazards can occur at any point. An example of this is the Philippines; it is susceptible to the occurrence of Typ...

1 - Stimulus excites the neurone cell membrane, causing sodium ion channels to open, so sodium ions diffuse into the neurone, making it less negative. This depolarises the inside of the membrane.2 - Depol...