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ATP. powers cellular work by coupling exergonic reactions to endergonic reactions. a cell does 3 kinds of work: chemical, transport, mechanical. To do work, cells manage energy resources. by energy coupling. ATP is composed of. ribose, adenine, and three phosphate groups. Hydrolysis.
couple reaction that consists of TWO reactions. Requires 27 kJ + hydrolysis of ATP releases 30 kJ so it works out. first reaction: glucose is phosphorylated + becomes the shared intermediate. this is energy releasing because ATP is that unstable w/ its 3 phosphates. second reaction: glucose-P reacts w/ fructose - > sucrose. this releases energy ...
2 paź 2024 · Study with Quizlet and memorize flashcards containing terms like identify some specific processes the cell does with ATP, Explain why ATP is such a high energy molecule, How does ATP couple reactions? and more.
ATP in reaction coupling. When reaction coupling involves ATP, the shared intermediate is often a phosphorylated molecule (a molecule to which one of the phosphate groups of ATP has been attached). As an example of how this works, let’s look at the formation of sucrose, or table sugar, from glucose and fructose 3, 4 .
Cells couple the exergonic reaction of ATP hydrolysis with the endergonic reactions of cellular processes. For example, transmembrane ion pumps in nerve cells use the energy from ATP to pump ions across the cell membrane and generate an action potential.
13 gru 2015 · The energy released from the first reaction allows for the formation of ATP from ADP and P. The second reaction is then driven by the hydrolysis (breakdown) of ATP, which releases energy. So the answer to your question is: In a coupled reaction, ATP is first used to store energy from a catabolic reaction and then used to release energy for an ...
Cells couple the exergonic reaction of ATP hydrolysis with endergonic reactions, allowing them to proceed. One example of energy coupling using ATP involves a transmembrane ion pump that is extremely important for cellular function.
