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DNA replicates via semi-conservative replication. This means one strand acts as the template strand. The enzyme DNA Helicase breaks the hydrogen bonds b...

Enzymes are proteins; as such they have a primary, secondary and tertiary structure. Each type of structure helps to hold the enzyme together so that it's substrate - the molecule it specifically binds to...

The all- or-nothing-law is related to neurons and is the idea that a neuron can only have a full response (fire an action potential) or no response to a stimulus due to its threshold.Once the resting pote...

There are four structures of a protein: the primary, secondary and tertiary. Primary is the sequence of amino acids in the protein. The secondary structure is the way the protein is either folded into a p...

When the body is exposed to a bacterial toxin for the first time, it is recognised as foreign and an immune response will be mounted. In response to the toxin, B lymphocytes will be produced which make an...