Answer:
A catalyst works by providing a different pathway for the reaction, one that has a lower activation energy than the uncatalyzed pathway. This lower activation energy means that a larger fraction of collisions are successful at a given temperature, leading to an increased reaction rate.
Explanation:
Khan Academy is a great homework site:
https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:kinetics/x2eef969c74e0d802:catalysis/v/catalysts
you can also use this video:
https://youtu.be/if5JGssffm8
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Vesicles form from the <span>endoplasmic reticulum, the Golgi apparatus and the plasma membrane. </span>
They are used to transport membrane and proteins between many different membranous organelles. <span>Vesicles form by budding from membranes of ER, Golgi and the plasma membrane.
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Vesicle<span> fusion is the merging of a </span>vesicle with other vesicles<span> or a part of a cell membrane.</span>