Review Questions for Advanced Biochemistry Course
... decreasing the GTPase activity of Gαs-stimulatory subunit decreasing the cAMP phosphodiesterase activity increasing protein phosphatase activity in the cell ...
... decreasing the GTPase activity of Gαs-stimulatory subunit decreasing the cAMP phosphodiesterase activity increasing protein phosphatase activity in the cell ...
Citric Acid Cycle Review Activity Goals
... Imagine yourself small enough to ride alongside a molecule of glucose that has just been broken down in glycolysis into two pyruvates. Then, each pyruvate crosses the mitochondrial membrane and something goes wrong because you were sitting on the surface of the pyruvate molecule as it entered the mi ...
... Imagine yourself small enough to ride alongside a molecule of glucose that has just been broken down in glycolysis into two pyruvates. Then, each pyruvate crosses the mitochondrial membrane and something goes wrong because you were sitting on the surface of the pyruvate molecule as it entered the mi ...
Document
... a. Proline is converted to the citric acid cycle intermediate α-ketoglutarate. The reactions in the remaining part of the citric acid cycle from α-ketoglutarate to oxaloacetate produce two NADH, one GTP, and one FADH2. The two NADH provide five ATP, one GTP provides one ATP, and one FADH2 provides 1 ...
... a. Proline is converted to the citric acid cycle intermediate α-ketoglutarate. The reactions in the remaining part of the citric acid cycle from α-ketoglutarate to oxaloacetate produce two NADH, one GTP, and one FADH2. The two NADH provide five ATP, one GTP provides one ATP, and one FADH2 provides 1 ...
Cell Respiration SAT II Review
... step of the Krebs cycle for further oxidation. • During this cycle CO2 is released • Substrates are oxidized give electrons and H+ ions to NAD+ → NADH. • For each entering acetate, 3 molecules of NADH are produced. • Another electron acceptor is FAD (flavin adenine dinucleotide) which is reduced to ...
... step of the Krebs cycle for further oxidation. • During this cycle CO2 is released • Substrates are oxidized give electrons and H+ ions to NAD+ → NADH. • For each entering acetate, 3 molecules of NADH are produced. • Another electron acceptor is FAD (flavin adenine dinucleotide) which is reduced to ...
CHAPTER 6
... Different Fates in the TCA Cycle • Neither of the carbon atoms of a labeled acetate unit is lost as CO2 in the first turn of the cycle • Carbonyl C of acetyl-CoA turns to CO2 only in the second turn of the cycle (following entry of acetyl-CoA ) • Methyl C of acetyl-CoA survives two cycles completely ...
... Different Fates in the TCA Cycle • Neither of the carbon atoms of a labeled acetate unit is lost as CO2 in the first turn of the cycle • Carbonyl C of acetyl-CoA turns to CO2 only in the second turn of the cycle (following entry of acetyl-CoA ) • Methyl C of acetyl-CoA survives two cycles completely ...
Metabolism II
... • Has a 3 carbon backbone that fatty acids attach to • it is metabolized quite readily into an intermediate in glycolysis, dihydroxyacetone phosphate, which may be converted into pyruvic acid • dihydroxyacetone may also be used in gluconeogenesis to make glucose-6-phosphate for glucose to the blood ...
... • Has a 3 carbon backbone that fatty acids attach to • it is metabolized quite readily into an intermediate in glycolysis, dihydroxyacetone phosphate, which may be converted into pyruvic acid • dihydroxyacetone may also be used in gluconeogenesis to make glucose-6-phosphate for glucose to the blood ...
Chapter 4
... is extracted in the form of chemical bond energy in discrete steps. What is the fate of glucose under aerobic conditions? What is the fate of pyruvate during strenuous exercise? What is the fate of medical students after their biochemistry final exam? ...
... is extracted in the form of chemical bond energy in discrete steps. What is the fate of glucose under aerobic conditions? What is the fate of pyruvate during strenuous exercise? What is the fate of medical students after their biochemistry final exam? ...
Redox reaction during glycolysis
... • State that, in cell respiration, glucose in the cytoplasm is broken down by glycolysis into pyruvate, with a small yield of ATP. • Explain that, during anaerobic cell respiration, pyruvate can be converted in the cytoplasm into lactate, or ethanol and carbon dioxide, with no further yield of ATP. ...
... • State that, in cell respiration, glucose in the cytoplasm is broken down by glycolysis into pyruvate, with a small yield of ATP. • Explain that, during anaerobic cell respiration, pyruvate can be converted in the cytoplasm into lactate, or ethanol and carbon dioxide, with no further yield of ATP. ...
doc 3.5.2 respiration notes Student notes for section 3.5.2
... A molecule of Glucose (...... C) is broken down (oxidised) into two molecules of pyruvate each of which has ……… carbon atoms. Glycolysis uses two molecules of ATP and produces four giving a net gain of ………… molecules of ATP for each glucose molecule. Glycolysis also produces two molecules of NADH (r ...
... A molecule of Glucose (...... C) is broken down (oxidised) into two molecules of pyruvate each of which has ……… carbon atoms. Glycolysis uses two molecules of ATP and produces four giving a net gain of ………… molecules of ATP for each glucose molecule. Glycolysis also produces two molecules of NADH (r ...
Document
... 3. The conversion of tetrahydrofolate to methylene tetrahydrofolate is coupled to which amino acid conversion? A) serine → glycine B) glutamate → gglycine C) serine → threonine D) glycine → alanine ...
... 3. The conversion of tetrahydrofolate to methylene tetrahydrofolate is coupled to which amino acid conversion? A) serine → glycine B) glutamate → gglycine C) serine → threonine D) glycine → alanine ...
Amino acid Metabolism 2
... 3. The conversion of tetrahydrofolate to methylene tetrahydrofolate is coupled to which amino acid conversion? A) serine → glycine B) glutamate → gglycine C) serine → threonine D) glycine → alanine ...
... 3. The conversion of tetrahydrofolate to methylene tetrahydrofolate is coupled to which amino acid conversion? A) serine → glycine B) glutamate → gglycine C) serine → threonine D) glycine → alanine ...
AA lecture 2 urea cycle
... • It produces NH3, which in addition to promoting growth, neutralizes acids produces by other bacteria. • S. Salivarius urease gene was introduced into Streptococcus mutans GS5. It was expressed and during glucose metabolism reduced pH decrease and duration. ...
... • It produces NH3, which in addition to promoting growth, neutralizes acids produces by other bacteria. • S. Salivarius urease gene was introduced into Streptococcus mutans GS5. It was expressed and during glucose metabolism reduced pH decrease and duration. ...
Metabolic Pathways - University of California, Santa Barbara
... 4. List and describe the four stages of catabolism: ...
... 4. List and describe the four stages of catabolism: ...
AP Biology - gwbiology
... called oxidation, and is aided by the reducing agent, and another substance gains elects, reduction, and is aided by the oxidizing agent. 3. Why is being “reduced” equivalent to having a greater potential energy? Because in reduction, bonds are being formed due to the new electrons being added. Thes ...
... called oxidation, and is aided by the reducing agent, and another substance gains elects, reduction, and is aided by the oxidizing agent. 3. Why is being “reduced” equivalent to having a greater potential energy? Because in reduction, bonds are being formed due to the new electrons being added. Thes ...
Slide 1 - MisterSyracuse.com
... 31. The steps of mitosis are much like a well-choreographed dance; they must go in just the right order, or the whole thing falls apart. Most of the time, mitosis goes very smoothly. However, mistakes can be made. One such mistake has been recently reported in a paper from 2005. The scientists who d ...
... 31. The steps of mitosis are much like a well-choreographed dance; they must go in just the right order, or the whole thing falls apart. Most of the time, mitosis goes very smoothly. However, mistakes can be made. One such mistake has been recently reported in a paper from 2005. The scientists who d ...
Metabolism 2010edit
... » regulation by final products & raw materials – levels of intermediates compounds in pathways » regulation of earlier steps in pathways – levels of other biomolecules in body » regulates rate of siphoning off to synthesis pathways ...
... » regulation by final products & raw materials – levels of intermediates compounds in pathways » regulation of earlier steps in pathways – levels of other biomolecules in body » regulates rate of siphoning off to synthesis pathways ...
9.6 Respiration 4 (Control and other metabolites)
... » regulation by final products & raw materials – levels of intermediates compounds in pathways » regulation of earlier steps in pathways – levels of other biomolecules in body » regulates rate of siphoning off to synthesis pathways ...
... » regulation by final products & raw materials – levels of intermediates compounds in pathways » regulation of earlier steps in pathways – levels of other biomolecules in body » regulates rate of siphoning off to synthesis pathways ...
Biochemical activity of bacteria
... • Major carbohydrate metabolism pathway: • 1.Embden-meyerhof-parnas (EMP) glycolysis • 2.Entner-Doudoroff (ED) • 3.Penthose phosphate (PP) • 4.Kreb´s cycle ...
... • Major carbohydrate metabolism pathway: • 1.Embden-meyerhof-parnas (EMP) glycolysis • 2.Entner-Doudoroff (ED) • 3.Penthose phosphate (PP) • 4.Kreb´s cycle ...
Hans A. Krebs - Nobel Lecture
... In the course of the 1920’s and 1930’s great progress was made in the study of the intermediary reactions by which sugar is anaerobically fermented to lactic acid or to ethanol and carbon dioxide. The success was mainly due to the joint efforts of the schools of Meyerhof, Embden, Parnas, von Euler, ...
... In the course of the 1920’s and 1930’s great progress was made in the study of the intermediary reactions by which sugar is anaerobically fermented to lactic acid or to ethanol and carbon dioxide. The success was mainly due to the joint efforts of the schools of Meyerhof, Embden, Parnas, von Euler, ...
Biochemistry I, Spring Term 2000 - Third Exam
... i) What are the similarities and differences between product inhibition and feedback inhibition. Both are involved with the control of metabolic pathways. The first describes inhibition directly by the product, the other describes inhibition by a metabolite, intermediate, or final product further do ...
... i) What are the similarities and differences between product inhibition and feedback inhibition. Both are involved with the control of metabolic pathways. The first describes inhibition directly by the product, the other describes inhibition by a metabolite, intermediate, or final product further do ...
長榮管理學院九十學年度二年制技術學系招生考試
... b. Protons c. Hydroxyl groups d. Methyl groups e. Phosphoryl groups 13. Which of the following enzyme complexes catalyzes the reduction of oxygen to water during oxidative phosphorylation? a. ATP synthase b. Cytochrome c oxidase c. NADH-Q oxidoreductase d. Q-cytochrome c oxidoreductase e. Succinate- ...
... b. Protons c. Hydroxyl groups d. Methyl groups e. Phosphoryl groups 13. Which of the following enzyme complexes catalyzes the reduction of oxygen to water during oxidative phosphorylation? a. ATP synthase b. Cytochrome c oxidase c. NADH-Q oxidoreductase d. Q-cytochrome c oxidoreductase e. Succinate- ...
Citric acid cycle
The citric acid cycle – also known as the tricarboxylic acid (TCA) cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats and proteins into carbon dioxide and chemical energy in the form of adenosine triphosphate (ATP). In addition, the cycle provides precursors of certain amino acids as well as the reducing agent NADH that is used in numerous other biochemical reactions. Its central importance to many biochemical pathways suggests that it was one of the earliest established components of cellular metabolism and may have originated abiogenically.The name of this metabolic pathway is derived from citric acid (a type of tricarboxylic acid) that is consumed and then regenerated by this sequence of reactions to complete the cycle. In addition, the cycle consumes acetate (in the form of acetyl-CoA) and water, reduces NAD+ to NADH, and produces carbon dioxide as a waste byproduct. The NADH generated by the TCA cycle is fed into the oxidative phosphorylation (electron transport) pathway. The net result of these two closely linked pathways is the oxidation of nutrients to produce usable chemical energy in the form of ATP.In eukaryotic cells, the citric acid cycle occurs in the matrix of the mitochondrion. In prokaryotic cells, such as bacteria which lack mitochondria, the TCA reaction sequence is performed in the cytosol with the proton gradient for ATP production being across the cell's surface (plasma membrane) rather than the inner membrane of the mitochondrion.