how do atp and adp form a cycle?
529497
When a phosphate breaks off, through chemical reactions in a cell, energy is released which the plant uses for cellular processes. The lower energy Adenosine DiPhosphate (ADP) is then re-energized during photosynthesis as the phosphate group is re-attached, thus completing the cycle of ATP to ADP to ATP...
340886
When a phosphate group is broken off the tail of an ATP molecule (by hydrolysis) the molecule becomes ADP (adenosine diphosphate). That hydrolysis is an exergonic reaction and it yields energy.
896924
Think of it as the “energy currency” of the cell. If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell.
1194401
Substrate-level phosphorylation is an enzymatically coupled reaction that produces ATP by the transfer of a phosphate group from a reactive intermediate generated during catabolism to ADP. ... The flow of protons back across the membrane releases energy that is harnessed to produce ATP.
287623
The conversion of ADP into ATP or vice versa occurs in presence of enzyme ATPase. The energy required for the conversion of ADP into ATP is obtained from light during photosynthesis and from exothermic reactions during cellular respiration in both plants and animals.
1255444
ADP can be recharged back into ATP by adding a phosphate. This requires energy. These molecules can be recycled so that a constant stream of energy rich ATP is available for all metabolic pathways in the cell.
782479
Both processes produce ATP from ADP and Pi, but substrate level phosphorylation occurs when enzymes remove a "high-energy" phosphate from a substrate and directly transfer it to ADP, while oxidative phosphorylation is based on electrons moving through and ETC and production of a proton-motive force that drives ATP ...
765051
The electron transport chain uses the high-energy electrons from glycolysis and the Krebs cycle to convert ADP to ATP. ... The electron transport chain uses the high-energy electrons from glycolysis and the Krebs cycle to convert ADP into ATP.
56934
The process of forming ATP from the electron transport chain is known as oxidative phosphorylation. Electrons carried by NADH + H+ and FADH2 are transferred to oxygen via a series of electron carriers, and ATPs are formed. Three ATPs are formed from each NADH + H+, and two ATPs are formed for each FADH2 in eukaryotes.
692736
Products of the Citric Acid Cycle Each turn of the cycle forms three NADH molecules and one FADH2 molecule. These carriers will connect with the last portion of aerobic respiration to produce ATP molecules. One GTP or ATP is also made in each cycle.
594102
Adenosine-5'-triphosphate (ATP) is comprised of an adenine ring, a ribose sugar, and three phosphate groups. ATP is often used for energy transfer in the cell. ATP synthase produces ATP from ADP or AMP + Pi. ATP has many uses.
613218
In order for this to happen, an enzyme strips one phosphate group off of ATP, converting it to the more stable molecule ADP. This enzyme provides the energy of activation that enables ATP to become ADP, indicating that ATP is kinetically stable.
610276
Energy is required to regenerate molecules of ATP that have been broken down. ATP is regenerated by joining a molecule of ADP to a phosphate group. The breakdown and regeneration of ATP can be summarised by the diagram below.
1149074
Answer and Explanation: ADP (adenosine diphosphate) and ATP (adenosine triphosphate) differ in the number of phosphate groups found in each molecule.
581126
If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell.
1272601
Substrate-level phosphorylation is directly phosphorylating ADP with a phosphate and energy provided from a coupled reaction. ... As protons move through ATP synthase, ADP is turned into ATP. The production of ATP using the process of chemiosmosis in mitochondria is called oxidative phosphorylation.
542193
ATP functions as the energy currency for cells. ... Energy derived from glucose catabolism is used to convert ADP into ATP. When ATP is used in a reaction, the third phosphate is temporarily attached to a substrate in a process called phosphorylation.