61. The effect of a conpetkive\"shhiar ca·be, weed by D. changing the plt 62. Th
ID: 213813 • Letter: 6
Question
61. The effect of a conpetkive"shhiar ca·be, weed by D. changing the plt 62. The complete collection of e ound i the cell and is ys D. catabolism E. mechanis 63. Metabolic pathways that make available raw materials from which other molecules can be synthesized and that chemical energy required for many cell activities a A anabolic B. catabolic C. amphibolic D. allosteric E. A and B 64. Metabolic pathways that lead to the synthesis of mo complex compounds from simpler starting materials are known as A. anabolic B. catabolic C. amphibolic D. allosteric E. A and B 65. Feedback inhibitors bind to the A. allosteric site B. active site C. substrate D. cofactor E. A and B 66. What word below characterizes the amino acid found in an a-helical segment that spans a membra A. Circular C. Hydrophobic D. Antiparallel E. Parallel 67. Why are the proteins being separated on an S polyacrylamide gel attracted equally to the positi A. They carry a uniform positive charge di B. They carry a uniform negative charge d C. They are all the same molecular weigh D. They are all the same size.Explanation / Answer
Answer for question number 61 : The correct option is B (Increasing the substrate concentration)
Explanation : Competitive inhibitors competes and binds to the enzyme active site since it is structurally similar to enzymes substrate binds to enzyme active site. When an enzyme that follows Michaelis-Menten kinetics is treated with a competitive inhibitor, its Km increases (affinity towards substrate decreases) and Vmax unaffected. A competitive inhibitor diminishes the rate of catalysis by reducing the proportion of enzyme molecules bound to substrate. By increasing the concentration of substrate, inhibitory action of the competitive inhibitor can be reversed as the number of substrate molecules binding to active site also increases.
Examples of competitive inhibitors.
Answer for question number 63 : The correct option is B (Metabolism). (Metabolism = Catabolism + Anabolism)
Explanation : In anabolism, also called biosynthetic reactions in which small and simple precursors are built up into larger and more complex molecules, including lipids, polysaccharides, proteins, and nucleic acids. Anabolic reactions require an input of energy, generally in the form of the phosphoryl group transfer potential of ATP and the reducing power of NADH, NADPH, and FADH2. Examples: Photosynthesis
Catabolism is the degradative phase of metabolism in which organic nutrient molecules such as carbohydrates, fats, and proteins are converted into smaller, simpler end products such as lactic acid, CO2, NH3. Catabolic pathways release energy, some of which is conserved in the formation of ATP and reduced electron carriers (NADH, NADPH, and FADH2). Example of catabolism: Cellular respiration.
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