Part A Drag the terms to their correct locations in these sentences.

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ATP

1. There are three main types of cellular work: chemical, transport, and movement. Most of this

work is powered by the transfer of a phosphate group from one molecule to another in a process

feedback inhibition

known as

endergonic

enzyme

phosphorylation

2. Through energy coupling, cells use

or energy-releasing, reactions to drive

or energy-requiring, reactions. The molecule

is the energy shuttle

between these two types of reactions.

exergonic

3. A specific

metabolism

speeds up each of a cell's chemical reactions.

4. Mechanisms such as

enable precise control over a cell's

-- all of

its chemical reactions.