One Stop Doc Metabolism & Nutrition by Miruna Canagaratnam, David Shaw

By Miruna Canagaratnam, David Shaw

A revision ebook within the One cease document revision sequence which covers the foremost evidence for the metabolism and nutrients module within the type of brief resolution Questions, (clinical circumstances) a number of selection Questions and prolonged Matching Questions. Illustrated with basic, simply reproduced line diagrams, this e-book will supply the entire beneficial details for examination luck.

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B. c. d. e. The process is inhibited by insulin Each cycle adds a two-carbon unit to the chain The process is endergonic (energy dependent) NADPH is supplied by the hexose monophosphate pathway Malonyl CoA is converted to acetyl CoA in the first step of the pathway 14. Use words from the following list of options to fill in the gaps in the paragraph about lipogenesis below Options A. Four E. Malonyl CoA I. Nucleus B. Oxaloacetate F. Mitochondria J. Two C. Citrate G. Cytosol D. Enoyl CoA H. Blood Synthesis of fatty acids takes place in the .......

Squalene is converted to lanosterol by hydroxylation then cyclization. The conversion of lanosterol to cholesterol is a multi-step process that involves many enzymes located in the endoplasmic reticulum. Thus, cholesterol synthesis occurs in the endoplasmic reticulum and the cytoplasm of all cells in the body. Hydrocarbon tail C Site of attachment of fatty acid in cholesterol ester A D B HO HMG CoA reductase is an intrinsic membrane protein of the endoplasmic reticulum. It is the rate limiting enzyme in the cholesterol synthesis pathway.

May be catalysed by glutamate dehydrogenase Can occur in the kidney Releases ammonia Can only use NAD+ as a coenzyme Is inhibited by ATP 36. True or false? Ammonia a. b. c. d. e. Is highly toxic to the central nervous system Is released from glutamine by glutaminase Is released from glutamate by glutamate dehydrogenase Is formed by bacterial degradation of urea in the intestine Is released on catabolism of purines and pyrimidines 37. Concerning the urea cycle a. b. c. d. e. It takes place in the liver hepatocytes Urea production continues during starvation The first two reactions occur in the mitochondria Citrulline is transported into the mitochondria Aspartate provides both nitrogen atoms of urea 38.

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