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Tutor profile: Yuto K.

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Yuto K.
University of California, Davis Graduate, B.S. in Pharmaceutical Chemistry
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Questions

Subject: Organic Chemistry

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Question:

Describe the differences between electrophiles and nucleophiles in a reaction. Provide 2 examples of reactions that show nucleophiles and electrophiles interacting.

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Yuto K.
Answer:

Electrophiles are electron deficient, whereas nucleophiles are electron rich species. Nucleophiles often conduct a nucleophilic attack on to electrophiles in reaction processes. Two examples of this include Michael addition reactions and the Mannich reaction.

Subject: Chemistry

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Question:

Describe the different applications and functions of catalysts in regards to reaction processes.

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Yuto K.
Answer:

Catalysts lower the activation energy of reactions, provides an alternate reaction pathway, and increases the rate of the reaction.

Subject: Biochemistry

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Question:

ATP is an essential high-energy compound used to couple many known biochemical reactions. Explain why the coupling of different reactions is an essential thermodynamic process to facilitate biochemical processes.

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Yuto K.
Answer:

Many reactions that constitute metabolism are unfavorable reactions, or reactions that have a positive delta G value. Therefore, thermodynamically unfavorable reactions are coupled with thermodynamically favorable reactions that have a negative delta G value. The coupling process produces a thermodynamically favorable reaction. The hydrolysis of ATP is a thermodynamically favorable reaction.

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