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Proteins are made up of chains of amino acids. Amino acids are made up of a central carbon atom, joined to one hydrogen atom, an amine group (NH2), a carboxyl group (COOH) and an R group. The R group vari...

Proteins are polymers made of amino acids. Proteins are essential molecules. Among many other roles, they can catalyse numerous reactions within the body (these proteins are known as enzymes), they allow ...

Content is what a text says. Form is the way in which what it says is arranged. Everything from a chapter to a paragraph to a punctuation mark is a way of arranging the content of a text, and thus a forma...

Tropomyosin is a protein that covers the actin binding site. This prevents a cross-bridge forming between the myosin and actin filaments whilst the muscle is at rest. Calcium ions bind to troponin molecul...

In some cases, the preposition ‘à’ is used to signify going ‘to’ a place in a sentence. However, sometimes this preposition takes on different forms or changes entirely based on the gender of the noun whi...