Which of the Following Is the First Step in the Mechanism

question 17

Multiple Choice

Which of the following is the first step in the mechanism of the reaction shown below?

• A)Carboxylate ion attacks the thiol.
• B)Carboxylate ion attacks the α-phosphorus of ATP.
• C)Carboxylate ion attacks the γ-phosphorus of ATP.
• D)Thiol molecule attacks the β-phosphorus of ATP.
• E)Thiol molecule attacks the acyl group.

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Definitions:

Environment

encompasses all external factors and conditions that affect living organisms, including natural forces and other living things, which provides the context for the development and growth of organisms.

Simultaneously

Occurring, operating, or done at the same time.

Darwin

Charles Darwin, a 19th-century naturalist known for his contributions to the science of evolution and his theory of natural selection.

Population

The entire group about which the investigator wants to draw conclusions.