pls can you describe how an emzyme works?

Answer 1

An enzyme is a protein makes a specific chemical reaction happen by lowering the amount of energy required to start it. Usualy enzyme reactions would not ever happen at body temperatures without the enzyme. They are also a great way for living things to control what is going on inside of them.

Answer 2

Enzymes are proteins that catalyze (i.e. accelerate) chemical reactions.
In these reactions, the molecules at the beginning of the process are called substrates, and the enzyme converts these into different molecules, the products.
Almost all processes in the cell need enzymes in order to occur at significant rates.
Since enzymes are extremely selective for their substrates and speed up only a few reactions from among many possibilities, the set of enzymes made in a cell determines which metabolic pathways occur in that cell.
Like all catalysts, enzymes work by lowering the activation energy for a reaction and thus dramatically accelerating the rate of the reaction.

Answer 3

Enzymes work by what's called the "lock and key" mechanism. Basically, the enzyme has a specific shape and can only bind to one specific substrate at its active site. The substrate fits into the enzyme much like puzzle pieces fit together. An enzyme can receive inhibition feedback however and different substrates will bind to its allosteric site; this is considered non-competetive. Competetive binding would be if a different substrate bonded to the active site.

An example is lactose. Lactase is the enzyme that breaks down lactose; lactase and lactose are specific to one another. Lactose can't be broken down without lactase and lactase can't break down anything besides lactose. People who are lactose-intolerant lack this enzyme.

Hope I helped!

Answer 4

An enzyme is a protein molecule that speeds up chemical reactions. They activate all functions in the body. By 'attacking' food during digestion they unlock the benefits of vitamins, minerals, proteins, and hormones and put them to work in the body.