lecture1
... Metabolic pathways can be linear, e.g. glycolysis or can be cyclic, e.g. TCA. In general, the rate of catabolism is controlled not by the conc. of nutrients available in the environment of the cell, but by the cell’s need for energy in the form of ATP. Similarly, the rate of biosynthesis of cell com ...
... Metabolic pathways can be linear, e.g. glycolysis or can be cyclic, e.g. TCA. In general, the rate of catabolism is controlled not by the conc. of nutrients available in the environment of the cell, but by the cell’s need for energy in the form of ATP. Similarly, the rate of biosynthesis of cell com ...
Connections of Carbohydrate, Protein, and Lipid
... You have learned about the catabolism of glucose, which provides energy to living cells. But when you eat and drink, as advised by Sir Toby, you consume more than glucose for food. How does a turkey/avocado sandwich end up as ATP in your cells? This happens because all of the catabolic pathways for ...
... You have learned about the catabolism of glucose, which provides energy to living cells. But when you eat and drink, as advised by Sir Toby, you consume more than glucose for food. How does a turkey/avocado sandwich end up as ATP in your cells? This happens because all of the catabolic pathways for ...
Gluconeogenesis
... Gluconeogenesis in Liver • Glucose produced from lactate, pyruvate or alanine through the use of bypass steps for the irreversible steps of Glycolysis • Pyruvate carboxylase (PC) and Phophoenolpyruvate carboxylase (PEPCK) reverse PK through Malate shuttle - Fig 9-15 • Fructose-1,6-Bisphosphatase re ...
... Gluconeogenesis in Liver • Glucose produced from lactate, pyruvate or alanine through the use of bypass steps for the irreversible steps of Glycolysis • Pyruvate carboxylase (PC) and Phophoenolpyruvate carboxylase (PEPCK) reverse PK through Malate shuttle - Fig 9-15 • Fructose-1,6-Bisphosphatase re ...
Medical Biochemistry
... oxidized to acetate by acetaldehyde dehydrogenase (AcDH). Acetaldehyde and acetate are toxic leading to the many side effects (the hangover) that are associated with alcohol consumption. The ADH and AcDH catalyzed reactions also leads to the reduction of NAD+ to NADH. The metabolic effects of ethano ...
... oxidized to acetate by acetaldehyde dehydrogenase (AcDH). Acetaldehyde and acetate are toxic leading to the many side effects (the hangover) that are associated with alcohol consumption. The ADH and AcDH catalyzed reactions also leads to the reduction of NAD+ to NADH. The metabolic effects of ethano ...
ATP - Mhanafi123`s Blog
... malate dehydrogenase Enzyme glyceraldehyde 3P dehydrogenase required NAD+ in function ...
... malate dehydrogenase Enzyme glyceraldehyde 3P dehydrogenase required NAD+ in function ...
bioc-2200-a-biol-2200-a-mock-final-exam
... 15. What is true about cholesterol? a. is a steroid precursor b. interacts only with hydrophobic tails of phospholipids c. always increases membrane fluidity d. cholesterol is just horrible for you 16. Which is true about glycerophospholipids? a. they can sometimes be sphingolipids, depending on the ...
... 15. What is true about cholesterol? a. is a steroid precursor b. interacts only with hydrophobic tails of phospholipids c. always increases membrane fluidity d. cholesterol is just horrible for you 16. Which is true about glycerophospholipids? a. they can sometimes be sphingolipids, depending on the ...
Ch 19 - Chemistry Courses: About
... • Looks allosteric, but this is monomeric enzyme • May be due to conformational change upon product release— stays in active state at high concentration of glucose ...
... • Looks allosteric, but this is monomeric enzyme • May be due to conformational change upon product release— stays in active state at high concentration of glucose ...
Role of fructose and uric acid in obesity and insulin resistance
... fructose-containing sugars. Fructose is distinct from other sugars in its initial metabolism via ketohexokinase (KHK), which bypasses regulated steps of glycolysis and rapidly depletes ATP followed by purine degradation via xanthine oxidoreductase (XOR) and, in addition, formation of the triglycerid ...
... fructose-containing sugars. Fructose is distinct from other sugars in its initial metabolism via ketohexokinase (KHK), which bypasses regulated steps of glycolysis and rapidly depletes ATP followed by purine degradation via xanthine oxidoreductase (XOR) and, in addition, formation of the triglycerid ...
macromolecules notes
... -Albumin is found in plasma and binds water and cations (such as Ca2+, K+, and Na+). It regulates osmotic pressure in blood. d. Contractile proteins -Actin & Myocin are found in muscle e. Structural proteins -Collagen fibers are the main component of connective tissue, like tendons and cartilage -El ...
... -Albumin is found in plasma and binds water and cations (such as Ca2+, K+, and Na+). It regulates osmotic pressure in blood. d. Contractile proteins -Actin & Myocin are found in muscle e. Structural proteins -Collagen fibers are the main component of connective tissue, like tendons and cartilage -El ...
Practice Exam 3
... ___ pyruvate kinase Name the two enzymes that catalyze a reaction in which ATP is consumed? __________________________________________ Which enzyme catalyzes a reaction in which NADH is produced? _____________________ Which enzyme converts G3P into 1,3 BPG? __________________________ Name two enzyme ...
... ___ pyruvate kinase Name the two enzymes that catalyze a reaction in which ATP is consumed? __________________________________________ Which enzyme catalyzes a reaction in which NADH is produced? _____________________ Which enzyme converts G3P into 1,3 BPG? __________________________ Name two enzyme ...
Practice Exam 3 Answers
... ___ pyruvate kinase Name the two enzymes that catalyze a reaction in which ATP is consumed? __________________________________________ Which enzyme catalyzes a reaction in which NADH is produced? _____________________ Which enzyme converts G3P into 1,3 BPG? __________________________ Name two enzyme ...
... ___ pyruvate kinase Name the two enzymes that catalyze a reaction in which ATP is consumed? __________________________________________ Which enzyme catalyzes a reaction in which NADH is produced? _____________________ Which enzyme converts G3P into 1,3 BPG? __________________________ Name two enzyme ...
Medical Biochemistry: Course content 2016/2017
... Lipid synthesis, obesity. What is lipogenesis and when does this process occur? What is the significance of this process in the human body? Which enzyme systems are required for de novo synthesis of fatty acids? How is the synthesis of fatty acids carried out in the human body (structural formulas a ...
... Lipid synthesis, obesity. What is lipogenesis and when does this process occur? What is the significance of this process in the human body? Which enzyme systems are required for de novo synthesis of fatty acids? How is the synthesis of fatty acids carried out in the human body (structural formulas a ...
Liver Function - Wk 1-2
... enter the bile at this point as it is insoluble in water. It is therefore conjugated (added to) with compounds in order to make it water soluble (ie glucuronic acid, sulphates) This is the form of Bilirubin considered “Conjugated Bilirubin”, its water solubility allowing it to pass into bile canalic ...
... enter the bile at this point as it is insoluble in water. It is therefore conjugated (added to) with compounds in order to make it water soluble (ie glucuronic acid, sulphates) This is the form of Bilirubin considered “Conjugated Bilirubin”, its water solubility allowing it to pass into bile canalic ...
Amino acid metabolism
... proteins are constantly turning over and must therefore be constantly replaced by protein synthesis. This requires a steady supply of all 20 amino acids. ...
... proteins are constantly turning over and must therefore be constantly replaced by protein synthesis. This requires a steady supply of all 20 amino acids. ...
Name 1 BIO 451 14 December, 1998 FINAL EXAM
... (5) Utilizes " -keto acids from amino acid degradation as an important fuel (6) Can store glycogen but cannot release glucose into the blood (7) Can synthesize fatty acids, triacylglycerols and VLDL when fuels are abundant ...
... (5) Utilizes " -keto acids from amino acid degradation as an important fuel (6) Can store glycogen but cannot release glucose into the blood (7) Can synthesize fatty acids, triacylglycerols and VLDL when fuels are abundant ...
CHE 4310 Fall 2011
... you can remember from class won’t improve your answer— just answer clearly, succinctly, and in your own words. ...
... you can remember from class won’t improve your answer— just answer clearly, succinctly, and in your own words. ...
(key)
... 6. For integral proteins associated with cell membranes what type of amino acid residues would be found exclusively within the membrane. l\)0'1\ - ...
... 6. For integral proteins associated with cell membranes what type of amino acid residues would be found exclusively within the membrane. l\)0'1\ - ...
lec3.Preferencial energy. mac2010-09
... containing absorbed nutrients and elevated levels of insulin secreted by the pancreas. These reached the liver through the hepatic portal vein before entry into the general circulation. Thus , the liver smoothes out potentially broad fluctuations تغير عريضin the availability of nutrients for the ...
... containing absorbed nutrients and elevated levels of insulin secreted by the pancreas. These reached the liver through the hepatic portal vein before entry into the general circulation. Thus , the liver smoothes out potentially broad fluctuations تغير عريضin the availability of nutrients for the ...
Ch.24Pt.5_000
... 2. Diabetes: body cannot process glucose properly 3. Long-term fasting: starvation, crash diets, Loozen’s blackberry eradication program, etc. • Inadequate amount of oxaloacetate forms. • Oxaloacetate already present is used in gluconeogenesis to make glucose. • Acetyl CoA cannot be processed in Kre ...
... 2. Diabetes: body cannot process glucose properly 3. Long-term fasting: starvation, crash diets, Loozen’s blackberry eradication program, etc. • Inadequate amount of oxaloacetate forms. • Oxaloacetate already present is used in gluconeogenesis to make glucose. • Acetyl CoA cannot be processed in Kre ...
Organic Molecules - Dublin City Schools
... e. All the above must be affected for the protein to be denatured ...
... e. All the above must be affected for the protein to be denatured ...
Lesson_3_liver_function
... • It contains energy so can be used for respiration. • It is broken down by hepatocytes by the enzyme ethanol dehydrogenase to ethanal. • Ethanal dehydrogenase then breaks the ethanal down into ethanoate. • Ethanoate combines with coenzyme A to form acetyl coenzyme A, and this molecule can enter the ...
... • It contains energy so can be used for respiration. • It is broken down by hepatocytes by the enzyme ethanol dehydrogenase to ethanal. • Ethanal dehydrogenase then breaks the ethanal down into ethanoate. • Ethanoate combines with coenzyme A to form acetyl coenzyme A, and this molecule can enter the ...
Fatty acid catabolism leture2-3
... The four steps of β -oxidation are repeated to get FA completely converted to acetylCoA. For example for a 16 carbon fatty acid, Palmityl-CoA, it will take 7 cycle of β -oxidation to generate 8 acetyl-CoA. Thus there will be production of ...
... The four steps of β -oxidation are repeated to get FA completely converted to acetylCoA. For example for a 16 carbon fatty acid, Palmityl-CoA, it will take 7 cycle of β -oxidation to generate 8 acetyl-CoA. Thus there will be production of ...
Slide 1
... 1- They are soluble in aqueous solution, so do not need to be incorporated into lipoproteins or carried by albumin as do other lipids 2- They are synthesized in the liver when amount of acetyl CoA exceeds oxidative capacity of liver 3- They are important sources of energy during prolonged periods of ...
... 1- They are soluble in aqueous solution, so do not need to be incorporated into lipoproteins or carried by albumin as do other lipids 2- They are synthesized in the liver when amount of acetyl CoA exceeds oxidative capacity of liver 3- They are important sources of energy during prolonged periods of ...
Lipids Metabolism - GIT
... 1- They are soluble in aqueous solution, so do not need to be incorporated into lipoproteins or carried by albumin as do other lipids 2- They are synthesized in the liver when amount of acetyl CoA exceeds oxidative capacity of liver 3- They are important sources of energy during prolonged periods of ...
... 1- They are soluble in aqueous solution, so do not need to be incorporated into lipoproteins or carried by albumin as do other lipids 2- They are synthesized in the liver when amount of acetyl CoA exceeds oxidative capacity of liver 3- They are important sources of energy during prolonged periods of ...
Glyceroneogenesis
Glyceroneogenesis is a metabolic pathway which synthesizes glycerol 3-phosphate or triglyceride from precursors other than glucose. Usually glycerol 3-phosphate is generated from glucose by glycolysis, but when glucose concentration drops in the cytosol, it is generated by another pathway called glyceroneogenesis. Glyceroneogenesis uses pyruvate, alanine, glutamine or any substances from the TCA cycle as precursors for glycerol 3-phophate. Phosphoenolpyruvate carboxykinase (PEPC-K), which is an enzyme that catalyses the decarboxylation of oxaloacetate to phosphoenolpyruvate is the main regulator for this pathway. Glyceroneogenesis can be observed in adipose tissue and also liver. It is a significant biochemical pathway which regulates cytosolic lipid levels. Intense suppression of glyceroneogenesis may lead to metabolic disorder such as type 2 diabetes.