Do enzymes receive help from cofactors?

Enzymes are biological catalysts, meaning they can speed up chemical reactions without being used up themselves. They do this by breaking down molecules, the molecules that each enzyme breaks down...

The action of chewing breaks the food down into smaller pieces, thus creating a larger surface area exposed to digestive enzymes. The larger surface area enables a larger amount of food to be...

A seed contains an embryo plant. it also contain a food store on which the embryo will rely while it is germinating, until it has grown leafs and can start to photosynthesise. For example bean seeds...

one of them is heliocase. it 'unzips' the DNA strand. You can always remember this because it's in a popular joke: Q. Why is the enzyme heliocase a lot like a teenage boy? A. They both want to unzip...

The enzyme's shape complements the substrate's shape, so it only catalyzes specific reactions.