@ss_kadm: #اكتب_شي_توجر_عليه 🤎 #quran #قران #fyp

Quran |قرأن
Quran |قرأن
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Monday 16 December 2024 14:45:27 GMT
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fatsh0m_89
Fat0oma..♥️✨ :
استغفر الله العظيم واتوب اليه
2024-12-16 14:49:48
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r_.uby.5
🪐 :
اللهم صلِ وسلم على سيدنا محمد ☁️💌
2024-12-16 18:51:12
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ayman.salah16
Ayman Salah / أيمن صلاح :
❤❤❤
2024-12-16 17:43:56
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🎥hhmi biointeractive
🎥hhmi biointeractive "Phase 1: The "Priming Step" The first phase of Glycolysis requires an input of energy in the form of ATP (adenosine triphosphate). alpha-D-Glucose is phosphorolated at the 6 carbon by ATP via the enzyme Hexokinase (Class: Transferase) to yield alpha-D-Glucose-6-phosphate (G-6-P). This is a regulatory step which is negatively regulated by the presence of glucose-6-phosphate. alpha-D-Glucose-6-phosphate is then converted into D-Fructose-6-phosphate (F-6-P) by Phosphoglucoisomerase (Class: Isomerase) D-Fructose-6-phosphate is once again phosphorolated this time at the 1 carbon position by ATP via the enzyme Phosphofructokinase (Class: Transferase) to yield D-Fructose-1,6-bisphosphate (FBP). This is the committed step of glycolysis because of its large ΔG value. D-Fructose-1,6-bisphosphate is then cleaved into two, three carbon molecules; Dihydroxyacetone phosphate (DHAP) and D-Glyceraldehyde-3-phosphate (G-3-P) by the enzyme Fructose bisphosphate aldolase (Class: Lyase) Because the next portion of Glycolysis requires the molecule D-Glyceraldehyde-3-phosphate to continue Dihydroxyacetone phosphate is converted into D-Glyceraldehyde-3-phosphate by the enzyme Triose phosphate isomerase (Class: Isomerase) Phase 2: The "Pay Off Step" The second phase of Glycolysis where 4 molecules of ATP are produced per molecule of glucose. Enzymes appear in red: D-Glyceraldehyde-3-phosphate is phosphorolated at the 1 carbon by the enzyme Glyceraldehyde-3-phosphate dehodrogenase to yield the high energy molecule 1,3-Bisphosphoglycerate (BPG) ADP is then phosphorolated at the expense of 1,3-Bisphosphoglycerate by the enzyme Phosphoglycerate kinase (Class: Transferase) to yield ATP and 3-Phosphoglycerate (3-PG) 3-Phosphoglycerate is then converted into 2-Phosphoglycerate by Phosphoglycerate mutase in preparation to yield another high energy molecule 2-Phosphoglycerate is then converted to phosphoenolpyruvate (PEP) by Enolase. H2O, potassium, and magnesium are all released as a result. ADP is once again phosphorolated, this time at the expense of PEP by the enzyme pyruvate kinase to yield another molecule of ATP and and pyruvate. This step is regulated by the energy in the cell. The higher the energy of the cell the more inhibited pyruvate kinase becomes. Indicators of high energy levels within the cell are high concentrations of ATP, Acetyl-CoA, Alanine, and cAMP. Because Glucose is split to yield two molecules of D-Glyceraldehyde-3-phosphate, each step in the "Pay Off" phase occurs twice per molecule of glucose." #biochem #glycolysis #metabolism #biotok #biologymajor

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