10 Steps of Glycolysis

10 Steps of Glycolysis Glycolysis literally means splitting sugars and is the process of releasing energy within sugars. In glycolysis, glucose (a six-carbon sugar) is split into two molecules of the three-carbon sugar pyruvate. This multistep process yields two molecules of ATP (free energy containing molecule), two molecules of pyruvate, and two high energy electron carrying molecules of NADH. Key Takeaways: Glycolysis Glycolysis is the process of breaking down glucose into two molecules of pyruvate. It produces ATP and is the first stage of cellular respiration. Glycolysis can occur with or without oxygen. In the presence of oxygen, glycolysis is the first stage of cellular respiration. In the absence of oxygen, glycolysis allows cells to make small amounts of ATP through the process of fermentation. Glycolysis takes place in the cytosol of the cells cytoplasm. However, the next stage of cellular respiration, known as the citric acid cycle, occurs in the matrix of cell mitochondria. Below are the 10 steps of glycolysis. Step 1 The enzyme hexokinase phosphorylates - adds a phosphate group to - glucose in the cells cytoplasm. In the process, a phosphate group from ATP is transferred to glucose producing glucose 6-phosphate. The equation is: Glucose (CStep 2 The enzyme phosphoglucoisomerase converts glucose 6-phosphate into its isomer fructose 6-phosphate. Isomers have the same molecular formula, but the atoms of each molecule are arranged differently. The equation for this step is: Glucose 6-phosphate (CStep 3 The enzyme phosphofructokinase uses another ATP molecule to transfer a phosphate group to fructose 6-phosphate to form fructose 1, 6-bisphosphate. The equation is: Fructose 6-phosphate (CStep 4 The enzyme aldolase splits fructose 1, 6-bisphosphate into two sugars that are isomers of each other. These two sugars are dihydroxyacetone phosphate and glyceraldehyde phosphate. The equation is: Fructose 1, 6-bisphosphate (CStep 5 The enzyme triose phosphate isomerase rapidly inter-converts the molecules dihydroxyacetone phosphate and glyceraldehyde 3-phosphate. Glyceraldehyde 3-phosphate is removed as soon as it is formed to be used in the next step of glycolysis. The two equations for this step are: Dihydroxyacetone phosphate (CNet result for step Nos. 4 and 5: Step 6 The enzyme triose phosphate dehydrogenase serves two functions in this step. First, the enzyme transfers a hydrogen (H-) from glyceraldehyde phosphate to the oxidizing agent nicotinamide adenine dinucleotide (NAD) to form NADH. Next, triose phosphate dehydrogenase adds a phosphate (P) from the cytosol to the oxidized glyceraldehyde phosphate to form 1, 3-bisphosphoglycerate. This occurs for both molecules of glyceraldehyde 3-phosphate produced in step 5. The two equations for this step are: A. Triose phosphate dehydrogenase + 2 HB. Triose phosphate dehydrogenase + 2 P + 2 glyceraldehyde 3-phosphate (CStep 7 The enzyme phosphoglycerokinase transfers a P from 1,3-bisphosphoglycerate to a molecule of ADP to form ATP. This happens for each molecule of 1,3-bisphosphoglycerate. The process yields two 3-phosphoglycerate molecules and two ATP molecules. The equation is: 2 molecules of 1,3-bisphoshoglycerate (CStep 8 The enzyme phosphoglyceromutase relocates the P from 3-phosphoglycerate from the third carbon to the second carbon to form 2-phosphoglycerate. The equation is: 2 molecules of 3-Phosphoglycerate (CStep 9 The enzyme enolase removes a molecule of water from 2-phosphoglycerate to form phosphoenolpyruvate (PEP). This happens for each molecule of 2-phosphoglycerate. The equation is: 2 molecules of 2-Phosphoglycerate (CStep 10 The enzyme pyruvate kinase transfers a P from PEP to ADP to form pyruvate and ATP. This happens for each molecule of phosphoenolpyruvate. This reaction yields two molecules of pyruvate and two ATP molecules. The equation is: 2 molecules of phosphoenolpyruvate (CEnd Result MediaForMedica l /UIG / Getty Images A single glucose molecule in glycolysis produces a total of two molecules of pyruvate, two molecules of ATP, two molecules of NADH, and two molecules of water. Although two ATP molecules are used in step Nos. 1 through 3, two ATP molecules are generated in step No. 7 and two more in step No. 10. This gives a total of four ATP molecules produced. If you subtract the two ATP molecules used in step Nos. 1 through 3 from the four generated at the end of step No. 10, you end up with a net total of two ATP molecules produced.

10 Steps of Glycolysis

10 Steps of Glycolysis Glycolysis literally means splitting sugars and is the process of releasing energy within sugars. In glycolysis, glucose (a six-carbon sugar) is split into two molecules of the three-carbon sugar pyruvate. This multistep process yields two molecules of ATP (free energy containing molecule), two molecules of pyruvate, and two high energy electron carrying molecules of NADH. Key Takeaways: Glycolysis Glycolysis is the process of breaking down glucose into two molecules of pyruvate. It produces ATP and is the first stage of cellular respiration. Glycolysis can occur with or without oxygen. In the presence of oxygen, glycolysis is the first stage of cellular respiration. In the absence of oxygen, glycolysis allows cells to make small amounts of ATP through the process of fermentation. Glycolysis takes place in the cytosol of the cells cytoplasm. However, the next stage of cellular respiration, known as the citric acid cycle, occurs in the matrix of cell mitochondria. Below are the 10 steps of glycolysis. Step 1 The enzyme hexokinase phosphorylates - adds a phosphate group to - glucose in the cells cytoplasm. In the process, a phosphate group from ATP is transferred to glucose producing glucose 6-phosphate. The equation is: Glucose (CStep 2 The enzyme phosphoglucoisomerase converts glucose 6-phosphate into its isomer fructose 6-phosphate. Isomers have the same molecular formula, but the atoms of each molecule are arranged differently. The equation for this step is: Glucose 6-phosphate (CStep 3 The enzyme phosphofructokinase uses another ATP molecule to transfer a phosphate group to fructose 6-phosphate to form fructose 1, 6-bisphosphate. The equation is: Fructose 6-phosphate (CStep 4 The enzyme aldolase splits fructose 1, 6-bisphosphate into two sugars that are isomers of each other. These two sugars are dihydroxyacetone phosphate and glyceraldehyde phosphate. The equation is: Fructose 1, 6-bisphosphate (CStep 5 The enzyme triose phosphate isomerase rapidly inter-converts the molecules dihydroxyacetone phosphate and glyceraldehyde 3-phosphate. Glyceraldehyde 3-phosphate is removed as soon as it is formed to be used in the next step of glycolysis. The two equations for this step are: Dihydroxyacetone phosphate (CNet result for step Nos. 4 and 5: Step 6 The enzyme triose phosphate dehydrogenase serves two functions in this step. First, the enzyme transfers a hydrogen (H-) from glyceraldehyde phosphate to the oxidizing agent nicotinamide adenine dinucleotide (NAD) to form NADH. Next, triose phosphate dehydrogenase adds a phosphate (P) from the cytosol to the oxidized glyceraldehyde phosphate to form 1, 3-bisphosphoglycerate. This occurs for both molecules of glyceraldehyde 3-phosphate produced in step 5. The two equations for this step are: A. Triose phosphate dehydrogenase + 2 HB. Triose phosphate dehydrogenase + 2 P + 2 glyceraldehyde 3-phosphate (CStep 7 The enzyme phosphoglycerokinase transfers a P from 1,3-bisphosphoglycerate to a molecule of ADP to form ATP. This happens for each molecule of 1,3-bisphosphoglycerate. The process yields two 3-phosphoglycerate molecules and two ATP molecules. The equation is: 2 molecules of 1,3-bisphoshoglycerate (CStep 8 The enzyme phosphoglyceromutase relocates the P from 3-phosphoglycerate from the third carbon to the second carbon to form 2-phosphoglycerate. The equation is: 2 molecules of 3-Phosphoglycerate (CStep 9 The enzyme enolase removes a molecule of water from 2-phosphoglycerate to form phosphoenolpyruvate (PEP). This happens for each molecule of 2-phosphoglycerate. The equation is: 2 molecules of 2-Phosphoglycerate (CStep 10 The enzyme pyruvate kinase transfers a P from PEP to ADP to form pyruvate and ATP. This happens for each molecule of phosphoenolpyruvate. This reaction yields two molecules of pyruvate and two ATP molecules. The equation is: 2 molecules of phosphoenolpyruvate (CEnd Result MediaForMedica l /UIG / Getty Images A single glucose molecule in glycolysis produces a total of two molecules of pyruvate, two molecules of ATP, two molecules of NADH, and two molecules of water. Although two ATP molecules are used in step Nos. 1 through 3, two ATP molecules are generated in step No. 7 and two more in step No. 10. This gives a total of four ATP molecules produced. If you subtract the two ATP molecules used in step Nos. 1 through 3 from the four generated at the end of step No. 10, you end up with a net total of two ATP molecules produced.

10 Steps of Glycolysis

10 Steps of Glycolysis Glycolysis literally means splitting sugars and is the process of releasing energy within sugars. In glycolysis, glucose (a six-carbon sugar) is split into two molecules of the three-carbon sugar pyruvate. This multistep process yields two molecules of ATP (free energy containing molecule), two molecules of pyruvate, and two high energy electron carrying molecules of NADH. Key Takeaways: Glycolysis Glycolysis is the process of breaking down glucose into two molecules of pyruvate. It produces ATP and is the first stage of cellular respiration. Glycolysis can occur with or without oxygen. In the presence of oxygen, glycolysis is the first stage of cellular respiration. In the absence of oxygen, glycolysis allows cells to make small amounts of ATP through the process of fermentation. Glycolysis takes place in the cytosol of the cells cytoplasm. However, the next stage of cellular respiration, known as the citric acid cycle, occurs in the matrix of cell mitochondria. Below are the 10 steps of glycolysis. Step 1 The enzyme hexokinase phosphorylates - adds a phosphate group to - glucose in the cells cytoplasm. In the process, a phosphate group from ATP is transferred to glucose producing glucose 6-phosphate. The equation is: Glucose (CStep 2 The enzyme phosphoglucoisomerase converts glucose 6-phosphate into its isomer fructose 6-phosphate. Isomers have the same molecular formula, but the atoms of each molecule are arranged differently. The equation for this step is: Glucose 6-phosphate (CStep 3 The enzyme phosphofructokinase uses another ATP molecule to transfer a phosphate group to fructose 6-phosphate to form fructose 1, 6-bisphosphate. The equation is: Fructose 6-phosphate (CStep 4 The enzyme aldolase splits fructose 1, 6-bisphosphate into two sugars that are isomers of each other. These two sugars are dihydroxyacetone phosphate and glyceraldehyde phosphate. The equation is: Fructose 1, 6-bisphosphate (CStep 5 The enzyme triose phosphate isomerase rapidly inter-converts the molecules dihydroxyacetone phosphate and glyceraldehyde 3-phosphate. Glyceraldehyde 3-phosphate is removed as soon as it is formed to be used in the next step of glycolysis. The two equations for this step are: Dihydroxyacetone phosphate (CNet result for step Nos. 4 and 5: Step 6 The enzyme triose phosphate dehydrogenase serves two functions in this step. First, the enzyme transfers a hydrogen (H-) from glyceraldehyde phosphate to the oxidizing agent nicotinamide adenine dinucleotide (NAD) to form NADH. Next, triose phosphate dehydrogenase adds a phosphate (P) from the cytosol to the oxidized glyceraldehyde phosphate to form 1, 3-bisphosphoglycerate. This occurs for both molecules of glyceraldehyde 3-phosphate produced in step 5. The two equations for this step are: A. Triose phosphate dehydrogenase + 2 HB. Triose phosphate dehydrogenase + 2 P + 2 glyceraldehyde 3-phosphate (CStep 7 The enzyme phosphoglycerokinase transfers a P from 1,3-bisphosphoglycerate to a molecule of ADP to form ATP. This happens for each molecule of 1,3-bisphosphoglycerate. The process yields two 3-phosphoglycerate molecules and two ATP molecules. The equation is: 2 molecules of 1,3-bisphoshoglycerate (CStep 8 The enzyme phosphoglyceromutase relocates the P from 3-phosphoglycerate from the third carbon to the second carbon to form 2-phosphoglycerate. The equation is: 2 molecules of 3-Phosphoglycerate (CStep 9 The enzyme enolase removes a molecule of water from 2-phosphoglycerate to form phosphoenolpyruvate (PEP). This happens for each molecule of 2-phosphoglycerate. The equation is: 2 molecules of 2-Phosphoglycerate (CStep 10 The enzyme pyruvate kinase transfers a P from PEP to ADP to form pyruvate and ATP. This happens for each molecule of phosphoenolpyruvate. This reaction yields two molecules of pyruvate and two ATP molecules. The equation is: 2 molecules of phosphoenolpyruvate (CEnd Result MediaForMedica l /UIG / Getty Images A single glucose molecule in glycolysis produces a total of two molecules of pyruvate, two molecules of ATP, two molecules of NADH, and two molecules of water. Although two ATP molecules are used in step Nos. 1 through 3, two ATP molecules are generated in step No. 7 and two more in step No. 10. This gives a total of four ATP molecules produced. If you subtract the two ATP molecules used in step Nos. 1 through 3 from the four generated at the end of step No. 10, you end up with a net total of two ATP molecules produced.

Admission essay Example | Topics and Well Written Essays - 250 words

Admission - Essay Example My desires and success in special education did not just stop with my university education. Immediately after graduation, I accepted an opportunity for tutorial classes at Taibah University in the Kingdom of Saudi Arabia, Department of Curriculum and Instruction as a tutorial fellow for one year. Since 1996, I have accumulated a remarkable wealth of knowledge in working with students with disabilities thus impacting positively on already learnt skills while at the same time giving me an opportunity to learn new ways of understanding the complexities that surround educational attainment of learners with special needs. The desire to improve the welfare of learners with special needs has also earned me both personal and professional development enabling me to articulate the theoretical aspects of special education into the reality and an extension enabling me to redesign neoclassical educational achievement of special education that seemed non existent within the classical arena. Over time, my remarkable performance has been accompanied by outstanding progress and improvement wich attracted distinguished promotions leading up being the Director of Hope Institute in Jeddah and CV. Within the period of direct contact with an array of ideas, perspectives and philophies of work, I have built a wealth of knowledge in special education leading up to accepting to join the first group of scholars to pursue the first stage Masters Degree at King Saud University with a full eye focus on Special Education, achieving excellent results. Based on this unique and rich experience, I ask myself, why not advance to a Doctorate level which will not only give me an opportunity to polish my hard earned skills but also empower me to contribute to the evolving world of Special Education scholarship through publications, seminars and taking up a lead in the dissemination of knowledge at the University to impel a generation conscious of the needs of

Human bioscience Essay Example | Topics and Well Written Essays - 1500 words

Human bioscience - Essay Example pH has a direct effect on the structure of proteins in the human body as pH aberrations lead to either excess protonation or deprotonation of the proteins. This has a direct effect on the protein structures making them less functional. Proteins form the major component of bodily structures, enzymes and chemical components, and their chemical sensitivity to pH leads to an increased demand for regulator mechanisms so that pH can be maintained within the required ranges. pH maintainence is important mainly in the blood or the extracellular compartment, however, several cells of the body and even the brain require a proper maintainence of intracellular pH levels. Intracellular compartments are mainly more acidic than the extracellular compartments because of the negative charges on the inside of the cells. Cells also contain hydrogen pumps such as H-ATPase and Na/H exchanger pumps which are crucial in maintaining the pH inside the cells and keep in metabollicaly active (Seifter, et al., 2005 pg.392). pH of the blood is susceptible to changes in response to several physiological as well as pathological processes and body mechanisms work in conjunction regulate the ranges. pH ranges are subjected to alterations after increased acid or basic food intake, excessive exercise or in conditions such as alcoholism, salicylate poisoning, diabetes or hyperventilation. These are only some of the examples which alter the pH levels and require prompt compensations. Body responds by its chemical buffering system, respiratory mechanisms and renal compensations mainly to keep the pH withing the normal ranges. The acid base homeostasis of the body is maintained by body buffers, chemosensors present in the brain as well as the circulation, the kidneys and the lungs. These components form the basic acid-base apparatus of the human body. The buffers present in the body include bicarbonate, proteins, phosphate and other