22. Think of two different proteins: both are enzymes. a) What
... 22. Think of two different proteins: both are enzymes. a) What landmark (feature) of conformation (overall structure) will be found in both enzymes? (Name it and tell its function). Active sites for binding substrates to catalyze chemical reactions. b) If one of the enzymes is an allosteric protein, ...
... 22. Think of two different proteins: both are enzymes. a) What landmark (feature) of conformation (overall structure) will be found in both enzymes? (Name it and tell its function). Active sites for binding substrates to catalyze chemical reactions. b) If one of the enzymes is an allosteric protein, ...
Biology
... Water is released and energy is stored in the newly formed chemical bonds. • 4. Hydrolysis: A chemical process where a large molecule is broken down into smaller molecules. Water is required and energy is released. Digestion is a series of hydrolytic ...
... Water is released and energy is stored in the newly formed chemical bonds. • 4. Hydrolysis: A chemical process where a large molecule is broken down into smaller molecules. Water is required and energy is released. Digestion is a series of hydrolytic ...
Midterm Exam Advanced Biochemistry II (Answer) 1. At equilibrium
... was shorter because of the presence of a new enzyme catalyzing the reaction Would shortening the glycolytic pathway in this way benefit the cell? Explain. Answer Under anaerobic conditions, the phosphoglycerate kinase and pyruvate kinase reactions are essential. The shortcut in the mutant yeast woul ...
... was shorter because of the presence of a new enzyme catalyzing the reaction Would shortening the glycolytic pathway in this way benefit the cell? Explain. Answer Under anaerobic conditions, the phosphoglycerate kinase and pyruvate kinase reactions are essential. The shortcut in the mutant yeast woul ...
What molecules make up living things
... What are nucleic acids? • Compounds that contain phosphorus and nitrogen in addition to other organic elements C,O,H • Found in hereditary material in the form of DNA or RNA ...
... What are nucleic acids? • Compounds that contain phosphorus and nitrogen in addition to other organic elements C,O,H • Found in hereditary material in the form of DNA or RNA ...
Phospho-regulation of human Protein Kinase Aurora-A
... antibody pA7.2. Three independent lines of evidence testified to the specificity of the monoclonal phospho-specific antibody pA7.2. Firstly, the antibody selectively recognized the phosphorylated peptide in ELISA screening assays but not the opposing non-phosphorylated peptide (data not shown). Seco ...
... antibody pA7.2. Three independent lines of evidence testified to the specificity of the monoclonal phospho-specific antibody pA7.2. Firstly, the antibody selectively recognized the phosphorylated peptide in ELISA screening assays but not the opposing non-phosphorylated peptide (data not shown). Seco ...
H ions
... Carrier Proteins and Ion Channels Glucose, sodium ions and chloride ions are just a few examples of molecules and ions that must efficiently get across the plasma membrane but to which the lipid bilayer of the membrane is impermeable. Their transport must therefore be "facilitated" by proteins that ...
... Carrier Proteins and Ion Channels Glucose, sodium ions and chloride ions are just a few examples of molecules and ions that must efficiently get across the plasma membrane but to which the lipid bilayer of the membrane is impermeable. Their transport must therefore be "facilitated" by proteins that ...
Bacterial enzymes that can deglycate glucose
... fully characterized the enzyme, and reported that it had deglycating activity, resulting in 3-deoxyglucosone formation while regenerating the free lysine residue. Thus the phosphorylating FN3K (fructosamine 3-kinase) enzyme is, in fact, a deglycating enzyme. Interestingly, the K m was found to be mu ...
... fully characterized the enzyme, and reported that it had deglycating activity, resulting in 3-deoxyglucosone formation while regenerating the free lysine residue. Thus the phosphorylating FN3K (fructosamine 3-kinase) enzyme is, in fact, a deglycating enzyme. Interestingly, the K m was found to be mu ...
hexose mono phosphate shunt
... • In the first phase, glucose 6-phosphate undergoes dehydrogenation and decarboxylation to yield a pentose, ribulose 5phosphate. • In the second phase, ribulose 5-phosphate is converted back to glucose 6-phosphate by a series of reactions involving mainly two enzymes: transketolase and transaldolas ...
... • In the first phase, glucose 6-phosphate undergoes dehydrogenation and decarboxylation to yield a pentose, ribulose 5phosphate. • In the second phase, ribulose 5-phosphate is converted back to glucose 6-phosphate by a series of reactions involving mainly two enzymes: transketolase and transaldolas ...
HEXOSE MONO PHOSPHATE SHUNT
... • In the first phase, glucose 6-phosphate undergoes dehydrogenation and decarboxylation to yield a pentose, ribulose 5phosphate. • In the second phase, ribulose 5-phosphate is converted back to glucose 6-phosphate by a series of reactions involving mainly two enzymes: transketolase and transaldolas ...
... • In the first phase, glucose 6-phosphate undergoes dehydrogenation and decarboxylation to yield a pentose, ribulose 5phosphate. • In the second phase, ribulose 5-phosphate is converted back to glucose 6-phosphate by a series of reactions involving mainly two enzymes: transketolase and transaldolas ...
testosterone
... 22 - Define and distinguish between diffusion, osmosis, facilitated diffusion, active transport. ...
... 22 - Define and distinguish between diffusion, osmosis, facilitated diffusion, active transport. ...
Slide 1
... 2) Muscles use fatty acids first, and then augment that with glucose oxidation, thus sparing glucose for periods of high energy output, and sparing bodily glucose for cells that are more directly dependent on it. 3) Fatty acids are mobilized from adipocytes and transported by serum albumin to variou ...
... 2) Muscles use fatty acids first, and then augment that with glucose oxidation, thus sparing glucose for periods of high energy output, and sparing bodily glucose for cells that are more directly dependent on it. 3) Fatty acids are mobilized from adipocytes and transported by serum albumin to variou ...
Workshop3Cellsans
... above answers are expected effects of an insufficient oxygen supply to the cells, and resulting fermentation. 8) Hummingbirds and nectar-feeding insects eat a diet that is rich in sugars and extremely low in protein. How are these individuals able to synthesize the amino acids and proteins required ...
... above answers are expected effects of an insufficient oxygen supply to the cells, and resulting fermentation. 8) Hummingbirds and nectar-feeding insects eat a diet that is rich in sugars and extremely low in protein. How are these individuals able to synthesize the amino acids and proteins required ...
Many people today are hooked on “fat free” or
... above answers are expected effects of an insufficient oxygen supply to the cells, and resulting fermentation. 8) Hummingbirds and nectar-feeding insects eat a diet that is rich in sugars and extremely low in protein. How are these individuals able to synthesize the amino acids and proteins required ...
... above answers are expected effects of an insufficient oxygen supply to the cells, and resulting fermentation. 8) Hummingbirds and nectar-feeding insects eat a diet that is rich in sugars and extremely low in protein. How are these individuals able to synthesize the amino acids and proteins required ...
TyrPhos12
... RTKs – Some Additional Important Points • See next slide: • Low-abundance proteins, their activation exerts major effects due to simultaneous activation of several signaling pathways that are often synergistic and enhanced survival and growth. • This is an important function of growth factors whe ...
... RTKs – Some Additional Important Points • See next slide: • Low-abundance proteins, their activation exerts major effects due to simultaneous activation of several signaling pathways that are often synergistic and enhanced survival and growth. • This is an important function of growth factors whe ...
Anaerobic and Aerobic Glycolysis
... Using pyruvate in this way (to keep glycolysis running at a paltry 2ATP per glucose) may seem wasteful considering the much larger amount of ATP generated should it enter the citric acid cycle (as acetyl CoA). However, glycolysis can run at a very high rate and thus meet the ATP demands of the cell ...
... Using pyruvate in this way (to keep glycolysis running at a paltry 2ATP per glucose) may seem wasteful considering the much larger amount of ATP generated should it enter the citric acid cycle (as acetyl CoA). However, glycolysis can run at a very high rate and thus meet the ATP demands of the cell ...
2009 exam with answers
... Cellulose, as apposing strands are held together by H-bonds of the protruding hydroxyl at carbon 6. Such H-bonds are not possible for polyfucose as there is no hydroxyl on carbon 6. If you did not remember the protruding C6 hydroxyl’s role in particular, the same conclusion could be reached based on ...
... Cellulose, as apposing strands are held together by H-bonds of the protruding hydroxyl at carbon 6. Such H-bonds are not possible for polyfucose as there is no hydroxyl on carbon 6. If you did not remember the protruding C6 hydroxyl’s role in particular, the same conclusion could be reached based on ...
Biochemistry 2000 Sample Questions 5 Transport, Carbohydrates, Metabolism
... ∆G' = ∆G'º + RT ln ([products]/[reactants]) 0 > 13.8 kJ/mol + 2.57 kJ/mol ln ([products]/[reactants]) -5.35 > ln ([products]/[reactants]) [products]/[reactants] < 4.7 x 10-3 Provided the reactants are present at greater than 213 fold excess the reaction will proceed. (5) The chemical basis of the hi ...
... ∆G' = ∆G'º + RT ln ([products]/[reactants]) 0 > 13.8 kJ/mol + 2.57 kJ/mol ln ([products]/[reactants]) -5.35 > ln ([products]/[reactants]) [products]/[reactants] < 4.7 x 10-3 Provided the reactants are present at greater than 213 fold excess the reaction will proceed. (5) The chemical basis of the hi ...
Loose ends - tewksapbio
... 1. Is glucose the only molecule that can be catabolized during cellular respiration? Why do we use glucose as the model? 2. Why do hydrogen atoms accompany electrons as they are transferred in biological systems? 3. Why is it thought that glycolysis is the first catabolic pathway to have evolved in ...
... 1. Is glucose the only molecule that can be catabolized during cellular respiration? Why do we use glucose as the model? 2. Why do hydrogen atoms accompany electrons as they are transferred in biological systems? 3. Why is it thought that glycolysis is the first catabolic pathway to have evolved in ...
Signal networks and pathways
... An abbreviation for adenosine 3',5'-monophosphate or adenosine 2',3' -monophosphate. An important intracellular regulator or second messenger for a number of cellular processes in animals, bacteria, fungi and plants. ...
... An abbreviation for adenosine 3',5'-monophosphate or adenosine 2',3' -monophosphate. An important intracellular regulator or second messenger for a number of cellular processes in animals, bacteria, fungi and plants. ...
Experimental phase diagrams to optimise membrane protein
... Crystallisation” (RAMP) and working with Dr Jennifer McManus in the Soft Matter and Biophysical Chemistry group in the Department of Chemistry at Maynooth University in Ireland. This is an experimental physical chemistry/biological physics project, using protein phase diagrams to optimise the condit ...
... Crystallisation” (RAMP) and working with Dr Jennifer McManus in the Soft Matter and Biophysical Chemistry group in the Department of Chemistry at Maynooth University in Ireland. This is an experimental physical chemistry/biological physics project, using protein phase diagrams to optimise the condit ...
Nutrition, Metabolism and Thermoregulation
... remains low, body catabolizes some proteins and fats • Stimulated by cortisol and thyroid hormone – cortisol (glucocorticoids) mobilizes proteins, making AA's available – thyroid hormone mobilizes proteins (AA's) and may mobilize lipids • Epinephrine, glucagon, hGH also stimulate • These five hormon ...
... remains low, body catabolizes some proteins and fats • Stimulated by cortisol and thyroid hormone – cortisol (glucocorticoids) mobilizes proteins, making AA's available – thyroid hormone mobilizes proteins (AA's) and may mobilize lipids • Epinephrine, glucagon, hGH also stimulate • These five hormon ...
Phosphorylation
Phosphorylation is the addition of a phosphate (PO43−) group to a protein or other organic molecule. Phosphorylation and its counterpart, dephosphorylation, turn many protein enzymes on and off, thereby altering their function and activity. Protein phosphorylation is one type of post-translational modification.Protein phosphorylation in particular plays a significant role in a wide range of cellular processes. Its prominent role in biochemistry is the subject of a very large body of research (as of March 2015, the Medline database returns over 240,000 articles on the subject, largely on protein phosphorylation).