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Cellular Respiration Lab Report

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What is the overall balanced chemical equation for the combustion of glucose in cellular respiration? C6H12O6+6O2→6CO2+6H2O+ATP / glucose + oxygen → carbon dioxide + water + energy How does ATP release stored energy? ATP (adenosine triphosphate) is a nucleotide that consists of an adenine base attached to a ribose sugar, which is attached to three phosphate groups. Energy is released when one of the three phosphate groups is removed by breaking a phosphoanhydride bond during hydrolysis. After this, ATP is converted into ADP (adenosine diphosphate). Describe the chemical steps in detail of glycolysis. Glycolysis is the metabolic process that serves as the foundation for both aerobic and anaerobic cellular respiration. Here the glucose is converted …show more content…

Hexokinase is the enzyme that catalyzes this reaction. The glucose is phosphorylated as a result, 1 molecule of ATP has been consumed. Phosphorylation is the process of adding a phosphate group to a molecule derived from ATP. Hexokinase catalyzes the phosphorylation of many six-membered glucose-liked structures. Atomic magnesium ( Mg ) is also involved to help shield the negative charges from the phosphate groups on the ATP molecule. The result of this phosphorylation is a molecule called glucose-6-phosphate ( G6P ) , thusly called because the 6 carbon of the glucose acquires the phosphate group. 2- Phosphoglucose Isomerase / Rearrangement of glucose 6-phosphate ( G6P ) into fructose 6- phosphate ( F6P ) by glucose phosphate isomerase ( Phosphoglucose Isomerase ) - This involves the conversion of glucose- 6 -phosphate ((F6P) .With the help of the enzyme phosphoglucose isomerase ( PI ) this reaction occurs involving an isomerization reaction. This reaction includes the rearrangement of the the carbon-oxygen bond to transform the six membered ring. Rearrangement takes place when the six membered ring opens and then closes in such a way that the first carbon becomes now external to the …show more content…

These two sugars are dihydroxyacetone phosphate ( DHAP ) and glyceraldehyde 3-phosphate ( GAP ) catalyzes the cleavage of FBP to yield two 3- carbon molecules. One of these molecules is called glyceraldehyde-3-phosphate ( GAP ) and other is called dihydroxyacetone phosphate ( DHAP) . 5 : TRIPHOSPHATE ISOMERASE - Intercoverts the molecules dihydroxyacetone phosphate (DHAP) and glyceraldehyde 3-phosphate ( GAP ) which is removed and used in next step of Glycolysis. The only molecule that continues in the glycolytic pathway is GAP , as result all the DHAP molecules produced are further acted on by the enzyme triphosphate isomerase ( TIM) . This enzyme reorganizes the DHAP into GAP so it can continue in glycolysis At this point in the glycolytic pathway, we have two 3-carbon molecules, but have not yet fully converted glucose into

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