Trans-fats are by-products of the industrial production of more saturated fats but are outlawed in California since
January 2010 because they may cause health problems. The following is a good biochemical reasoning to explain the
health problems caused by trans-fats in comparison to the naturally occurring cis-fats that only contain double bonds in
Trans-fats cannot be transported in chylomicrons, thus remaining in the liver
Trans-fats cannot be imported into mitochondria by carnitine, thus are not degraded by oxidation
Trans-fats do not require enoylCoA isomerases, thus avoiding a regulatory process
Trans-fats do not require dienoyl-CoA reductases, thus requiring less NADPH+H
for fat oxidation
None of the above reasons are correct.
Which of these lipids can best be used for gluconeogenesis?
Triacylglycerol with C17:0, C17:0, C20:0
Membrane lipid Phosphatidylcholine with C16:0, C18:0
Triacylglycerol with C16:0, C18:0, C20:0
Membrane lipid Phosphatidylcholine with C16:0, C16:0
All of these lipids have the same result on gluconeogenesis
Complete the sentence involving enzymes, pathways and metabolites in various organs and/or blood.
Under conditions of endurance exercise_______________ and ____________ are very active while
_______________ levels are high and _______________levels are low.
Glycolysis, transaminases, amino acid, glucose
Oxidative phosphorylation, phosphorylase, glucagon, phosphocreatine
Pancreatic alpha-cells, peptidases, epinephrine, insulin
Lactate dehydrogenase, GLUT4, glucose, amino acid
Lipases, glycogen synthase, oxygen, cAMP
The following is not a metabolic characteristic of cancer cells compared to the surrounding tissue cells: