How does the hydrolysis of ATP drives cellular work?


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With the help of specific enzymes, the cell is able to couple the energy of ATP hydrolysis directly to endergonic processes by transferring a phosphate group from ATP to some other molecule, such as glucose.

What is the function of ATP mastering biology?

ATP molecules diffuse or are transported to the place where the energy is needed and deliver chemical energy from the breaking of their phosphate bonds.

Why is ATP a good source of energy for biological reactions quizlet?

Why is ATP a good source of energy for biological reactions? Triphosphate chains are unstable. A reaction is said to be unfavorable if … The reaction A โ†’ B is unfavorable by itself, but through energy-coupling, cells can use ATP to convert A into B.

Which part of the ATP molecule is released when it is hydrolyzed to provide energy for biological reactions?

Which part of the adenosine triphosphate molecule is released when it is hydrolyzed to provide energy for biological reactions? ฮณ-phosphate (the terminal phosphate); the primary phosphate group on the ATP molecule that is hydrolyzed when energy is needed to drive anabolic reactions.

How does ATP drive transport work?

ATP is able to power cellular processes by transferring a phosphate group to another molecule (a process called phosphorylation). This transfer is carried out by special enzymes that couple the release of energy from ATP to cellular activities that require energy.

How does ATP hydrolysis release energy?

When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP). Likewise, energy is also released when a phosphate is removed from ADP to form adenosine monophosphate (AMP).

What process occurs in Box A mastering biology?

Carbon dioxide and water are by-products of cellular respiration. What process occurs in Box A? Glycolysis occurs in the cytosol.

Which of the following statements accurately describes hydrolysis reactions in biological systems?

Which one of the following statements accurately describes hydrolysis reactions in biological systems? Hydrolysis reactions enable the breakdown of food molecules during digestion.

Why is the citric acid cycle called a cycle mastering biology?

Why is the citric acid cycle called a cycle? The four-carbon acid that accepts the acetyl CoA in the first step of the cycle is regenerated by the last step of the pathway. When a poison such as cyanide blocks the electron transport chain, glycolysis and the citric acid cycle also eventually stop working.

Why is ATP so important to metabolism quizlet?

Why is ATP an important molecule in metabolism? It proivdes energy coupling between exergonic and energonic reactions. When the ATP is hydrolyzed, the phosphate is removed and it releases energy.

Why is energy needed for active transport?

Active transport requires energy because it is not a passive process. The molecule has to go against the concentration gradient. Hence it requires energy to be carried by the carrier proteins.

Why ATP is better than glucose as an immediate energy source for cell metabolism?

Explanation: ATP (Adenosine Triphosphate) is a more immediate source of energy than glucose because ATP is produced in the cells and its conversion to energy is a single-step process. Whereas glucose first needs to be broken down in order to be used as an energy source.

Which reaction can be driven by the hydrolysis of a molecule of ATP?

Which reaction can be driven by the hydrolysis of a molecule of ATP? For some biosynthetic reactions, such as the synthesis of nucleic acids, the energy supplied by the hydrolysis of ATP to ADP and Pi is insufficient to drive the reaction forward.

What molecules does ATP become after hydrolyzed?

ATP can be hydrolyzed to ADP and Pi by the addition of water, releasing energy. ADP can be “recharged” to form ATP by the addition of energy, combining with Pi in a process that releases a molecule of water.

What is the role of ATP in energy coupling and transfer?

Question 1: What’s the role of ATP in energy coupling? Answer: ATP is the molecule whose burst of energy is used to couple an exergonic reaction to power an endergonic reaction in energy coupling. ATP coupling provides that endergonic reaction with the potential to manifest now.

What is ATP driven active transport?

Active transport driven by ATP hydrolysis. Free energy stored in the activated carrier ATP can be used to drive the transport of an ion or small molecule against a gradient – i.e., transport from a region of low to high concentration.

How is ATP converted into energy?

Through metabolic processes, ATP becomes hydrolyzed into ADP, or further to AMP, and free inorganic phosphate groups. The process of ATP hydrolysis to ADP is energetically favorable, yielding Gibbs-free energy of -7.3 cal/mol. [1] ATP must continuously undergo replenishment to fuel the ever-working cell.

Which of the following is the best explanation for the energetics of ATP hydrolysis?

Which of the following is the BEST explanation for the energetics of ATP hydrolysis? Anabolic reactions, such as peptide (protein) synthesis and endergonic in nature.

Why is ATP hydrolysis so favorable?

1) Getting rid of one phosphate group is energetically favourable because there is a large electrostatic repulsion between phosphate groups in ATP (see picture above) because they are very close together, and all have various negative charges on the oxygens (like charges repel, opposite charges attract).

What is mastering biology?

Mastering Biology is the teaching and learning platform that empowers you to reach every student. When combined with educational content written by respected scholars across the curriculum, Mastering Biology helps deliver the learning outcomes that students and instructors aspire to.

What happens to the amount of ATP in your muscle cells in that first second as you leap out of the room slamming the door behind you?

What happens to the amount of ATP in your muscle cells in that first second, as you leap out of the room, slamming the door behind you? ATP levels would fall at first, decreasing the inhibition of PFK and increasing the rate of ATP production.

How is ATP produced by glycolysis quizlet?

In glycolysis, glucose is broken down into two 3-carbon molecules of pyruvate, and the potential energy released is used to phosphorylate ADP to form ATP.

What is a hydrolysis reaction?

Thus, a hydrolysis reaction is the cleavage of chemical bonds by the addition of water or a base that supplies the hydroxyl ion ( OHโˆ’). A chemical bond is cleaved, and two new bonds are formed, each one having either the hydrogen component (H) or the hydroxyl component (OH) of the water molecule.

What role do electrons play in dehydration synthesis and hydrolysis?

What role do electrons play in dehydration synthesis and hydrolysis? Sharing of electrons between monomers occurs in both dehydration synthesis and hydrolysis. The sharing of electrons between monomers occurs in hydrolysis only. H+ and OHโˆ’ ions share electrons with the respective monomers in dehydration synthesis.

Which one of the following occurs when a phosphate is removed from an ATP molecule?

When a phosphate group is removed from ATP, energy is released and ADP results.

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