Life requires energy. Describe the basic principles of bioenergetics in an animal cell. How is the flow and transformation of energy different in a photosynthesizing cell? Include the role of ATP and enzymes in your discussion.
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Life requires energy. Describe the basic principles of bioenergetics in an animal cell. How is the flow and transformation of energy different in a photosynthesizing cell? Include the role of ATP and enzymes in your discussion.
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- Working at cross-purposes? Gluconeogenesis takes place during intense exercise, which seems counterintuitive. Why would an organism synthesize glucose and at the same time use glucose to generate energy?ATP yield. Each of the following molecules is processed by glycolysis to lactate. How much ATP is generated from each molecule?BioKemi!! Make a theoretical calculation of how many ATP molecule of acetyl-CoA to Carbon dioxide and water if the entire proton gradient across the mitochondrias inner membrane can be used for ATP production and when the ATP synthase has 15 c-subunits? All steps in the calculations must be reported Hand written solution otherwise down vote
- kcat = ? an enzyme has an aspartic acid in the active site with a pKa = 4.0 and the kcat for this enzyme is directly proportional to the fraction of this side chain that is ionized. If the kcat at pH = 4.0 is 52.9x103 s-1 what is the kcat for this enzymes at pH 3.5BIOMOLECULES - MULTIPLE CHOICE - Please answer properly QUESTION : In human beings, what is the major control of de novo pyrimidine nucleotide synthesis? A. substrate availability B. competitive inhibition of carbamoyl phosphate synthetase II C. feedback inhibition of glutamine-PRPP amidotransferase D. vailability of N-acetyl glutamateBIOMOLECULES - MULTIPLE CHOICE - Please answer properly QUESTION : Supposed you want to use phosphoglucomutase to breakdown glycogen. You found out that this enzyme is responsible for converting glucose 1-phosphate (C6H13O9P) to glucose-6-phosphate (C6H13O9P). Based on this action, to which enzyme class does phosphoglucomutase belong? A. Isomerase B. Oxidoreductase C. Lyase D. Ligase
- 1- ATP consider as an important molecule in metabolism, because : A) It is one of the four building blocks for DNA synthesis.B) It provides energy coupling between exergonic and endergonic reactions.C) Its terminal phosphate group contains a strong covalent bond that, when hydrolyzed, releases free energy.D) Its hydrolysis provides an input of free energy for exergonic reactions.E) Its terminal phosphate bond has higher energy than the other two. 2- How many ATP yield from complete oxidation of glucose to carbon dioxide and water: A) 38 B) 32C) 2D) 8E)24A violation of the First Law? The complete combustion of glucose to CO 2 and H 2 O yields 30 ATP, as shown in Table 18.4 . However, the synthesis of glucose requires only 18 ATP. How is it possible that glucose synthesis from CO 2 and H 2 O requires only 18 ATP , but combustion to CO 2 and H 2 O yields 30 ATP? Is it a violation of the First Law of Thermodynamics , or perhaps a miracle?multiple choice, choose the correct answer Under which of the following conditions would an enzyme fail to be accurately described by the M-M equation:1. kcat >> k1 or k-12. In the presence of a negative allosteric effector3. At low concentrations, the reaction is first order with respect to substrate concentration4. At high concentrations the reaction is zero order with respect to substrate
- Modified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false, write the incorrect underlined word/s and indicate the correct word/s to make the statement true. Catabolic pathways synthesize complex end products from simple substrates and require energy use.Tags: Biology, chemistry, biochemistry, metabolic pathway, cellular respiration, ATP synthase, alzheimer's disease It was observed that the β-subunit of the ATP synthase has a low level of expression in Alzheimer’s disease (neurodegenerative disorder). Explain a possible link between this observation and the said disease.9Calculate the total amount of ATP that is produced by the complete oxidation of a 20 carbon even-chain saturated fatty acid. Include the number of each cycle required, describe each stage involved, and list the number of ATP that correspond with each stage.