1. It is not used up and does not change shape in a reaction.
2. It is used to speed up a reaction
3. Will only bind to another molecule as long as the enzyme substrate complex can form(see lock and key theory)
Enzymes are proteins and their levels of activity depend on their tertiary and quarternary structures. They tend to be specific in terms of the reaction they can catalyze and are sensitive to changes in pH and temperature. Enzymes work in aqueous solutions and are often regulated by inhibitors.
§Most are globular proteins that act as biological catalysts
§Holoenzymes consist of an apoenzyme (protein) and a cofactor (usually an ion)
§Enzymes are chemically specific
One of the unique characteristics of retrotransposons is that they code for an enzyme that synthesizes DNA using an RNA template.
Alterations in enzyme levels, tissue abnormalities, and organ malfunction may be followed by illness and death.
An enzyme is a protein, so is in its most basic form, a string of amino acids. However, hydrogen bonds between molecules in the string make the chain fold into a large, bundled shape that will have an 'active site' that will only allow bonding one specific substrate.
its low activity in obese people explains, in part, the inability to mobilize storage fate for energy when following an energy-restricted diet.
The enzyme is inactive at this point. New enzyme must be added to regain enzyme activity
in an enzyme-substrate complex, the enzyme acts on the substrate .
An enzyme is a protein
The place where the substrate and the enzyme meet to allow the enzyme to function.
An angiotensin converting enzyme is an enzyme which catalyzes the creation of angiotensin.
enzyme-substrate complex
the lipase enzyme :)
Such an enzyme is called a restriction endonuclease