bysubstrate-level phophorylation mercy from the NADH and FArm ATP electron cs es
ID: 269414 • Letter: B
Question
bysubstrate-level phophorylation mercy from the NADH and FArm ATP electron cs es the transfier of a phosphate group to ADP from an orgsnie 19. Oxidative phosphorylation takes place in C NADH nd FADH D. ATP A. 20. Are electrons lost or gained in reduotion? 21. Which one of the following represents the reduced formss of the two major C neither electron carriers? A. NAD and FAD C. NADH and FAD B. NAD and FADI D. NADH and FADH 22, which one ofthe following i, not·product of cellular respiration? A. carbon dioxide E. All of these choices are correct B water C oxygen D. ATP 23. The electron transport chain is part of A. glycolysis. C. oxidative phosphorylation. B. the citric acid cycle D. fermentation. E pyruvate oxidation. 24- The individual polypeptide chains in a multi-subanit and tertiary structure protein each have their own primary A. true B.false 25. The fully folded structure of a complex functional protein to as the structure composed of two potypeptide chain ts reterred A primary B. secondary C. tertiary D. quaternary 26- The unfolding of a protein by heat or chemical treatment is referred to as: A disaggregation. D. hydrolysis. B. uncoupling C. denaturation E. depolymerization. 27. What are examples of potential energy? B. wind, water evaporation, gasoline. B. wind, sunlight, heat D. Sunlight cloud, cooked potato 28- referring to a DNA sequence, 5 CAG GGA TTA3, what would be the mRNA sequences. C. candy bar water behind a dam, cloud A 3 GUC CCU AAUS' B. 3 CUG GGA UUAS C. 5 CUG GGA UUA3" D. 5" GUC CCU AAU3 29. After the polypeptide has been transferred to the tRNA in the A site,..moves down one codon so that the polypeptide-bearing tRNA is in the P site of the ribosome. A. tRNA B. mRNA C Ribosome D. Spliceosome 30- You are investigating an abnormal eukaryotic cell line that makes all of its mRNAs much longer than the mRNAs from normal cells. Intrigued, you examine the proteins in these abnormal cells and note that many of them are either much longer or much shorter than the normal proteins from nonmutant cells. Assuming there is just one mutant defect in these cells, which of the below possibilities is most likely A. A stop codon is mutated. B. RNA polymerase does not recognize the terminator sequence. C. The release factor is defective. D. The spliceosome is nonfunctional. E. The enzyme that adds the poly-A tail is defective.Explanation / Answer
18. Beta- oxidation of fatty acids is a catabolic process in which there is a breakdown of fatty acids to generate acetyl CoA, which enters the citric acid cycle and NADH and FADH2 are produces which are coenzymes used in Electron transport chain.
19. B) Oxidative phosphorylation is a process in which ATP is formed as a result of the transfer of electrons from NADH or FADH2 to O2 by a series of electron carriers. It takes place in mitochondria.
20.B) electrons are gained in reduction and reduction is also known as the gain of electrons and oxidation is the loss of electrons.
21.d) NADH and FADH2 represent the reduced form of two major electron carriers ( as consist of H atoms electrons are not lost).
22.c) Oxygen and glucose are reactants of cellular respiration and are hence not products. The main products include ATP water, carbon dioxide.
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