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FNDH 620 Exam 2 Questions and Answers Verified by Experts What desaturase enzymes do humans not have? (i.e., humans cannot desaturate fatty acids beyond what carbon) - Humans cannot desaturate pass the 9th carbon of a FA - Delta numbering is backwards from omega numbering. There's no Δ12 or Δ15 to saturate, so we cannot create two essential fatty acids Most common fat is found in food and in the body? Triglycerides Phospholipid structure Phosphatidic acid - glycerol, two fatty aci...

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41 pages

Written in 2024/2025

Grade A+

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FNDH 620 Exam 2 Questions and Answers|Latest Update What molecules can we form from cholesterol? Estrogen and Androgen DHEA Andrenocorticoid hormones Define amphiphilic Attract both water and fat soluble substances Cholesterol synthesis Building blocks (Carbon source) Rate limiting enzyme Acetyl CoA carbon source Rate limiting: HMG-CoA reductase

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31 pages

Written in 2024/2025

Grade A+

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FNDH 620 exam 2 Questions with Verified Answers What percent of total body protein is turned over each day? 1-2%, 30-40g What protein deficiency can result in a negative nitrogen balance? Tryptophan What conditions can induce pellagra like symptoms? -incomplete dietary protein -inherited defects in neutral AA transporter -Niacin deficiency

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10 pages

Written in 2024/2025

Grade A+

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FNDH 620 Questions and Answers 100% Solved Non-competitive inhibition when one substrate or inhibitor changes the structure of of the enzyme stopping the other from binding, inhibiting decreases the speed of the reaction Can glucokinase or hexokinase be inhibited by allosteric means? Only hexokinase What is the key enzyme in glycogenolysis? glycogen phosphorylase

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10 pages

Written in 2024/2025

Grade A+

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FNDH 620 Exam 2 Questions and Answers 100% Solved Describe what happens once lipids enter the enterocyte The vesicles fuse with the plasma membrane and undergo exocytosis, dumping the chylomicrons into the space outside the cells. What molecule transports most dietary lipid in the lymph system? Chylomicrons Primary cellular site of fatty acid oxidation Oxidation occurs in the mitochondria and peroxisomes

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22 pages

Written in 2024/2025

Grade A+

StudyLoom01