Each enzyme has an "active site". The active site of each enzyme is unique in terms of 3D structure. Each unique active site can be thought of as a 3D surface that is able to bind only a single unique substrate or set of substrates, and it is the shape of the active site that is responsible for each enzyme's substrate selectivity. Most enzymes actually use the same or nearly the same, mechanisms of action; most commonly simple acid-base chemistry is used to catalyse reactions.
It may be difficult to understand, but enzyme active sites are actually thought to bind the "transition state" of the substrate. The transition state may be thought of as a state where the structure of the substrate is literally stretched to be somewhere between the orginal substrate structure, and the structure of the product of the enzyme catalyzed reaction. In other words, the enzyme can be thought of as "pulling" the substrate into a product. In this way, the enzyme lowers the energy required to pass the "transition" state, and accelerates the reaction of substrate to product.
Thus, the structure of the enzyme imparts both its substrate specificity (because only certain substrates will fit into the active site), and its activity (because in binding the substrate, the enzyme lowers the transition energy required for the substrate to form product).
Hope this helped, despite my rambling.
Answer:
George Washington strongly believed that foreign involvement wasn't in the United States' best interest -- it would only lead to economic hardship and instability. The U.S. military was too weak and war-weary to fight another battle so soon after the American Revolution.
Explanation:
i hope this is the Washington your talking about
Answer:
Great Trek (1835–40) Migration of c. 12,000 Boers from Cape Colony into the South African interior. Their motives were to escape British control and to acquire cheap land. The majority settled in what became Orange Free State, Transvaal, and Natal.
Explanation:
England became a protestant country in 1534
The best way to interact with rival countries that possesses nuclear weapons is Disarmament.
<h3>Why is Disarmament is the best protection against
rival countries that possesses
nuclear weapons?</h3>
This is because Disarmament will help in reducing or abolishing weapons because nuclear weapon is very dangerous.
This Disarmament is been done by the country's military or specific type of weaponry which involves different and professional training so as a way to be proactive.
learn more about Disarmament at brainly.com/question/9645944
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