I) Choose the best answer: 1- Which of the following metabolites can
... 1- Regulation of citric acid cycle occurs at each of the following enzymes EXCEPT: a) Citrate synthetase b) Isocitrate dehydrogenase c) Aconitase d) α-ketoglutarate dehydrogenase 2- Which one of the following is a positive allosteric regulator for gluconeogenesis : a) Adenosine monophosphate (AMP) b ...
... 1- Regulation of citric acid cycle occurs at each of the following enzymes EXCEPT: a) Citrate synthetase b) Isocitrate dehydrogenase c) Aconitase d) α-ketoglutarate dehydrogenase 2- Which one of the following is a positive allosteric regulator for gluconeogenesis : a) Adenosine monophosphate (AMP) b ...
Protein Synthesis
... Protein Synthesis What is that chromosome made of anyway? It is pretty much one great big macromolecule of DNA all coiled up on itself. If you stretched it out, you could identify the double helix shape and the “ladder rungs”. ...
... Protein Synthesis What is that chromosome made of anyway? It is pretty much one great big macromolecule of DNA all coiled up on itself. If you stretched it out, you could identify the double helix shape and the “ladder rungs”. ...
ASMS 2013 phosphopeptide poster
... HCD and ETD as outlined in the experimental design in Figure 1. Samples used in this study were two different amounts (200 and 600 µg pre-digest and phosphopeptide enrichment) of cell lysate from monocyte derived macrophages (MDM), control and treated with methamphetamine. These datasets were analyz ...
... HCD and ETD as outlined in the experimental design in Figure 1. Samples used in this study were two different amounts (200 and 600 µg pre-digest and phosphopeptide enrichment) of cell lysate from monocyte derived macrophages (MDM), control and treated with methamphetamine. These datasets were analyz ...
U4L24 Carbo Disposal
... • Need to put the 5-C sugar back into glycolysis – Accomplished by rearranging and exchanging carbon atoms between 5C molecules – Catalysed by enzymes called transaldolases and transketolases • So, 5C + 5C C7 + C3 by a transketolase (2C unit transferred) • Then C7 + C3 C6 + C4 by a transaldolase ...
... • Need to put the 5-C sugar back into glycolysis – Accomplished by rearranging and exchanging carbon atoms between 5C molecules – Catalysed by enzymes called transaldolases and transketolases • So, 5C + 5C C7 + C3 by a transketolase (2C unit transferred) • Then C7 + C3 C6 + C4 by a transaldolase ...
Document
... Factors Influencing Enzyme Activity • Feedback inhibition (end-product inhibition): accumulation of the end-product in a particular pathway inhibits the first enzyme’s activity in the pathway – Regulate cell’s production of amino acids, vitamins, purines, and pyrimidines – Mechanism stops the cell ...
... Factors Influencing Enzyme Activity • Feedback inhibition (end-product inhibition): accumulation of the end-product in a particular pathway inhibits the first enzyme’s activity in the pathway – Regulate cell’s production of amino acids, vitamins, purines, and pyrimidines – Mechanism stops the cell ...
so, where do you get all your protein? investigating
... INVESTIGATING THE PROTEIN CONTENT OF VARIOUS FOODS BACKGROUND INFORMATION ...
... INVESTIGATING THE PROTEIN CONTENT OF VARIOUS FOODS BACKGROUND INFORMATION ...
Signal Transduction
... • In addition to directly binding of Ca with some proteins, such as channels, most of the effects of Ca are due to its binding to regulatory proteins such as calmodulin (17 kDa 148 amino acids). Calmodulin widely occurs in eukaryotes both animals and plants as well as now found in prokaryotes (Shema ...
... • In addition to directly binding of Ca with some proteins, such as channels, most of the effects of Ca are due to its binding to regulatory proteins such as calmodulin (17 kDa 148 amino acids). Calmodulin widely occurs in eukaryotes both animals and plants as well as now found in prokaryotes (Shema ...
Slide 1
... Denatures protein in food Uncoil protein’s strands Enzymes attack peptide bonds ...
... Denatures protein in food Uncoil protein’s strands Enzymes attack peptide bonds ...
Biochemistry 3300 More Quizzes Page:1/4 1) How many electrons
... A) Citrate, Isocitrate, malate, oxaloacetate B) Citrate, Glyoxylate, Succinate, oxaloacetate C) Isocitrate, citrate, malate, oxaloacetate D) Glyoxylate, citrate, isocitrate, malate, oxaloacetate E) Citrate, isocitrate, glyoxylate, malate, oxaloacetate 9) Which of the following enzymes is unique to t ...
... A) Citrate, Isocitrate, malate, oxaloacetate B) Citrate, Glyoxylate, Succinate, oxaloacetate C) Isocitrate, citrate, malate, oxaloacetate D) Glyoxylate, citrate, isocitrate, malate, oxaloacetate E) Citrate, isocitrate, glyoxylate, malate, oxaloacetate 9) Which of the following enzymes is unique to t ...
1. Metabolism refers to A) pathways of chemical reactions that build
... A) ATP releases a phosphate group and becomes ADP. B) ADP releases a phosphate group and becomes ATP. C) ATP gains a phosphate group and becomes ADP. D) ADP gains a phosphate group and becomes ATP. 4. In metabolism, glucose is degraded to carbon dioxide and water. The carbon dioxide is produced in: ...
... A) ATP releases a phosphate group and becomes ADP. B) ADP releases a phosphate group and becomes ATP. C) ATP gains a phosphate group and becomes ADP. D) ADP gains a phosphate group and becomes ATP. 4. In metabolism, glucose is degraded to carbon dioxide and water. The carbon dioxide is produced in: ...
Protein in Foods
... Muscle is composed of Fibrous proteins called actin and myosin They form bundles of fibers , held together by connective tissues made of collagen and elastin Two proteins with long, strong molecules. ...
... Muscle is composed of Fibrous proteins called actin and myosin They form bundles of fibers , held together by connective tissues made of collagen and elastin Two proteins with long, strong molecules. ...
NEHRU ARTS AND SCIENCE COLLEGE, TM PALAYALAM
... 17. After a 24 hour fast, the maintenance of blood glucose is largely a result of the change in the insulin to glucagon ratio. All of the following help to explain this mechanism EXCEPT: (A) More free fatty acid is mobilized from adipose tissue (B) Oxaloacetate is used as the principal source of ene ...
... 17. After a 24 hour fast, the maintenance of blood glucose is largely a result of the change in the insulin to glucagon ratio. All of the following help to explain this mechanism EXCEPT: (A) More free fatty acid is mobilized from adipose tissue (B) Oxaloacetate is used as the principal source of ene ...
G-protein coupled receptor over-expression in
... GPCRs are the single largest protein family in the mammalian genome, and the largest class of drug targets. Unfortunately, they are only available in minute quantities in the cell (typically less than 0.1% of the protein complement). It is therefore recognised by the scientific community that the on ...
... GPCRs are the single largest protein family in the mammalian genome, and the largest class of drug targets. Unfortunately, they are only available in minute quantities in the cell (typically less than 0.1% of the protein complement). It is therefore recognised by the scientific community that the on ...
Carbohydrates
... Plants store extra sugar as polysaccharides (many sugars) known as starches The monomers that make up starches are glucose molecules Examples of foods that contain high amounts of starch include: potatoes, wheat, corn, and rice ...
... Plants store extra sugar as polysaccharides (many sugars) known as starches The monomers that make up starches are glucose molecules Examples of foods that contain high amounts of starch include: potatoes, wheat, corn, and rice ...
ORGANIC MOLECULES OF THE CELL
... This is due to its many hydroxyl groups. Recall that the hydroxyl functional group attracts water. Therefore, monosaccharides and disaccharides dissolve readily in water, forming sugary solutions. Starch and cellulose do not dissolve readily, but they do attract water. ...
... This is due to its many hydroxyl groups. Recall that the hydroxyl functional group attracts water. Therefore, monosaccharides and disaccharides dissolve readily in water, forming sugary solutions. Starch and cellulose do not dissolve readily, but they do attract water. ...
Cellular Energetics
... • 4. Electron Transport Chain and Oxidative Phosphorylation • ETC proteins embedded in the inner mitochondrial membrane • ETC membrane proteins accept e- from NADH and FADH2 • e- are passed down the ETC via redox reactions until they reach the final e- acceptor (O2) to form water • No ATP is made by ...
... • 4. Electron Transport Chain and Oxidative Phosphorylation • ETC proteins embedded in the inner mitochondrial membrane • ETC membrane proteins accept e- from NADH and FADH2 • e- are passed down the ETC via redox reactions until they reach the final e- acceptor (O2) to form water • No ATP is made by ...
Nerve activates contraction
... Formation of macromolecules from smaller building block molecules represents another level in the hierarchy of biological organization. There are four classes of macromolecules in living organisms: Carbohydrates Lipids Proteins Nucleic acids ...
... Formation of macromolecules from smaller building block molecules represents another level in the hierarchy of biological organization. There are four classes of macromolecules in living organisms: Carbohydrates Lipids Proteins Nucleic acids ...
SLG MOCK MIDTERM – FOR PRACTICE ONLY
... C) Large polar but uncharged molecules. D) All of the above. E) None of the above. 23. Which of the following statements about enzymes is true? A) The increase the rate of chemical reactions. B) They function as biological catalysts by lowering the activation energy. C) They regulate chemical reacti ...
... C) Large polar but uncharged molecules. D) All of the above. E) None of the above. 23. Which of the following statements about enzymes is true? A) The increase the rate of chemical reactions. B) They function as biological catalysts by lowering the activation energy. C) They regulate chemical reacti ...
Document
... DO NOW • How can muscle cells maintain (or keep) a high concentration of potassium inside the cell? • If a cell increases or decreases in volume, what type of transport must happen? • Building blocks of carbohydrates? • Building blocks of proteins? • Function of the nucleus? ...
... DO NOW • How can muscle cells maintain (or keep) a high concentration of potassium inside the cell? • If a cell increases or decreases in volume, what type of transport must happen? • Building blocks of carbohydrates? • Building blocks of proteins? • Function of the nucleus? ...
Lecture 4 - Muscle Metabolism
... – Used as fuel by liver, kidneys, and heart – Converted back into pyruvic acid or glucose by liver ...
... – Used as fuel by liver, kidneys, and heart – Converted back into pyruvic acid or glucose by liver ...
Lehninger Principles of Biochemistry 5/e
... 1. The liver has two main cell types - Kupper cells: phagocytes, important in immune function - Hepatocytes: transform dietary nutrients into the fuels and precursors required by other tissues and export them via the blood. 2. Sugars - GLUT2 : glucose transporter of hepatocytes - Glucokinase : high ...
... 1. The liver has two main cell types - Kupper cells: phagocytes, important in immune function - Hepatocytes: transform dietary nutrients into the fuels and precursors required by other tissues and export them via the blood. 2. Sugars - GLUT2 : glucose transporter of hepatocytes - Glucokinase : high ...
Chapter 7
... • nature of starch (amylose, amylopectin content) • interaction of starch with protein, fat. • presence of antinutrient such as phytate, tannin, saponins and enzyme inhibitors. ...
... • nature of starch (amylose, amylopectin content) • interaction of starch with protein, fat. • presence of antinutrient such as phytate, tannin, saponins and enzyme inhibitors. ...
Insulin
... Insulin is a protein hormone produced by the beta cells of the pancreas Insulin’s function in homeostasis is regulating glucose and fat metabolism. Insulin allows cells in the liver, muscle, and fat tissue transport glucose from the blood. – It causes insertion of glut‐4 transporters into the cel ...
... Insulin is a protein hormone produced by the beta cells of the pancreas Insulin’s function in homeostasis is regulating glucose and fat metabolism. Insulin allows cells in the liver, muscle, and fat tissue transport glucose from the blood. – It causes insertion of glut‐4 transporters into the cel ...
glucose
... •GLUT 2 is more highly expressed in the periportal cells of the liver, also a characteristic of the gluconeogenic enzymes. •This type of regulation would support the argument that up-regulation of GLUT 2 was more critical in glucose export from the liver to maintain glucose homeostasis than in impor ...
... •GLUT 2 is more highly expressed in the periportal cells of the liver, also a characteristic of the gluconeogenic enzymes. •This type of regulation would support the argument that up-regulation of GLUT 2 was more critical in glucose export from the liver to maintain glucose homeostasis than in impor ...
7-cellular-respiration
... The electrons provide the energy to regenerate ATP from ADP + Pi. requires energy low energy ADP + Pi ATP high energy state releases energy state The metabolic pathways for cell respiration are linked to many other pathways because they produce the energy needed for them as ATP. ATP = adenosin ...
... The electrons provide the energy to regenerate ATP from ADP + Pi. requires energy low energy ADP + Pi ATP high energy state releases energy state The metabolic pathways for cell respiration are linked to many other pathways because they produce the energy needed for them as ATP. ATP = adenosin ...
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).