Which of the following processes is dependent on the activity of pentose phosphate shunt? Gluconeogenesis Glycogen Synthesis All of these options are true Fatty Acid Synthesis
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- Which of the following is NOT a non-carbohydrate material in gluconeogenesis? Choices: Lactate Pyruvate Glycerol Glucose 6-phosphateIn gluconeogenesis, what are the precursors of glucose? Select all that apply. lactate amino acids glycogen glycerol fatty acidsTransamination is a process by which an amine group is transferred from an amino acid to a keto acid resulting in the formation of a new amino acid. C O True O False
- What glycolytic intermediate is fructose converted to in the muscle, such that it can be utilized in glycolysis? Glucose 6-phosphate Fructose 6-phosphate Glyceraldehyde 3-phosphate Dihydroxyacetone phosphateWhich of the following enzymes functions in opposition of PFK, and therefore is inhibited by fructose-2,6-bisphosphate? Fructose 1,6-bisphosphatase Glucokinase Pyruvate Carboxylase Glucose 6-phosphataseSome amino acids are both glucogenic and ketogenic. Explain the difference between the two types and why some amino acids can be both.
- Transamination reactions typically involve which of the following (select all that apply)? O almidine linkage/Schiff base O biotin O alpha-keto acid O pyridoxal phosphate zymogens O glutamate dehydrogenaseWhat glycolytic intermediate is fructose converted to in the liver, such that it can be utilized in glycolysis? Glyceraldehyde 3-phosphate Glucose 6-phosphate Fructose 6-phosphate Fructose 1-phosphateTrue or false Lactase breaks down all the disaccharides
- What enzyme will not be used if the oxidative portion of the pentose phosphate pathway is operating to produce ribose 5-phosphate? Ribulose 5-phosphate isomerase 6-phosphoglucono-lactonase 6-phosphogluconate dehydrogenase TransaldolaseThe formation of thymidylate is typically coupled with the synthesis of which amino acid? O Cysteine Glutamate Alanine Serine O Glycine O GlutamineA diagram of the reactions of the first round of fatty acid synthesis (lipogenesis) is shown. How many cycles of the synthesis pathway are needed to produce lauric acid, C11H23COOH? || CH3 C S KSO-C-CH₂-C-SACP acetyl-ACP malonyl-ACP CO₂ || CH3 C-CH₂-C-SACP || NADPH + H+ NADP+ OH 요 CH3 CH-CH₂-C-SACP d ord H₂O CH3CH=CH-C-SACP d NADPH + H+ NADP+ CH3CH₂CH2 C-SACP number of cycles: