Noun. 1. agoraphobia-a morbid fear of open spaces (as fear of being caught alone in some public place). phobia, phobic disorder, phobic neurosis-an anxiety disorder characterized by extreme and irrational fear of simple things or social situations; phobic disorder is a general term for all phobias. Translations.
Coenzyme [edit]. A coenzyme is a small, organic, non-protein molecules that carries chemical groups between enzymes. It is the cofactor for the enzyme and does not form a permanent part in the enzyme's structure. Sometimes, they are called cosubstrates and are considered substrates that are loosely bound to the enzyme. In metabolism, coenzymes play a role in group-transfer reactions, such as ATP and coenzyme A, and oxidation-reduction reactions, such as NAD+ and coenzyme Q10. Coenzymes are frequently consumed and recycled.
For an enzyme to work it must bind to a specific substrate molecule, using a part of the enzyme molecule called the active site. To do this, the enzyme's active site and the s â¦ ubstrate must have matching (complementary) shapes.The shape of an enzyme molecule depends on the exact way in which the molecule folds up.When enzymes are heated the weak bonds which hold the molecules in their precise shape are broken, and the enzyme molecule unwinds into a random shape. It can no longer bind with its substrate so it no longer has any activity.This unwinding of a protein molecule is called denaturation.hen enzymes are heated the weak bonds which hold the molecules in their precise shape are broken, and the enzyme molecule unwinds into a random shape. It can no longer bind with its substrate so it no longer has any activity. This unwinding of a protein molecule is called denaturation.