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.
Hello there.
<span>Which statements correctly describe the expansion of the United States between 1789 and 1850?
</span><span>A. The United States went to war with Britain to gain the Oregon Territory.
</span><span>
In 1846- </span>The United States went to war with Britain
<span>D. The United States doubled in size by purchasing the Louisiana Territory from France.
</span>
<span>Louisiana Purchase concluded - Apr 30, 1803</span>
Answer:
I believe the correct answer was/is "He wants to mobilize America to prepare for war, just in case."
Explanation:
While Adams was president, he help prevent a full on war with France. The French were upset because the U.S. would not repay their debts to the new French government. Once the French heard about the peace treaty between the U.S and Great Britain they became infuriated. Out of anger they began seizing and pirating U.S ships. As more problems increased with the French, including the large payments they demanded before negotiation Americas became angry and upset. Though most Americans wanted war, John Adams worried that the U.S was too young and its military was too small to go to war again. But just in case of war he sent fellow officers or high ranked Americans to discuss peace with the French, while he continued to improve their military...just in case of war.
Answer:
I believe the answer is A, World War 1 was the main cause of the ottoman empire to break up, and that caused political unrest. But please check on some history websites to make sure it's correct :)
Explanation:
Answer:
⇒ Abolition of Industrial licensing Policy.
⇒ Free access to foreign technology
⇒ Abolition of Government control over capital issues and
creation of SEBI to encourage equity culture in India.
⇒ Reduction in industries reserved for public sector.
⇒ Decision to go for partial disinvestment in public sector enterprises
Explanation:
⇒ Abolition of Industrial licensing Policy.
⇒ Free access to foreign technology
⇒ Abolition of Government control over capital issues and
creation of SEBI to encourage equity culture in India.
⇒ Reduction in industries reserved for public sector.
⇒ Decision to go for partial disinvestment in public sector enterprises
