True or false?
True False The function of the enzyme acyl CoA
synthetase is the ATP-dependent coupling of fatty acids to
CoA.
True False Unsaturated fatty acids contain zero alkene
bonds.
True False The brain uses ketones instead of glucose for
ATP production during long-term fasting.
True False A biotin-deficient diet may lead to an
increase of cytosolic acetyl CoA.
True False Untreated, chronic ketone body production
will raise blood pH levels.
True False The availability of the metabolite malate
determines whether acetyl CoA, made from fatty acids, can enter the
citric acid cycle.
True False Acetyl CoA used in fatty acid synthesis is
transferred from the mitochondria to the cytoplasm in the form of
citrate.
True False When Ribose 5-phophate needs are greater than
the need for NADPH, Glycolysis and the backwards route of the
non-oxidative part of PPP are used.
True False The enzyme that catalyzes the addition of an
activated two-carbon compound with an activated three-carbon
compound is malonyl transacylase.
True False Double C=C bonds are introduced into fatty
acids in the mitochondria matrix compartment of the cell.
True False The PPP produces NADPH during the oxidative
phase of the pathway.
True False Lipoamide takes the acetyl group from
TPP.
True False In the phosphopentose isomerase reaction
Ribulose 5-phosphate is converted to Xylulose 5-phosphate through
an enediolate intermediate
True or false? True False The function of the enzyme acyl CoA synthetase is the ATP-dependent coupling...
Mention if the following statements are false or true and justify your answer a. Biotin is required for the activity of fatty acid synthase b. The reaction of condensation in the synthesis of fatty acids is enhanced by the decarboxylation of malonyl-CoA c. The synthesis of fatty acids does not depend on ATP d. Palmitate is the final product of fatty acid synthase e. All the activities of the enzyme required for the synthesis of fatty acids in mammals are...
Indicate whether the following statements are true or false. Justify your answer. a. ( 3 pts) _____ Acetyl- CoA carboxylase is activated by palmitoyl- CoA. b. (3 pts) ______ During the synthesis of palmitate in liver cells, the addition of malonyl- CoA to fatty acid synthase elongates the growing chain by three carbons. c. ( 3 pts) ______ Lipoprotein lipase is an intracellular enzyme.
which of the following is True about beta oxidization of fatty acid (true or false) a* to occur in mammalian cell fatty acids must first be converted to acyl-coa which is then converted to acyl camitine for transport into mitochondria b*. full oxidization of fatty acid will lead to more reduced electron carries NADH and FADH2 as compared to full oxidization of carbohydrate of the same length c*. production of acetyl coa from fatty acid includes substrate level phosphorylation step...
helppp!! true or false 15. The oxidation of pyruvate to acetyl-CoA generates 1 ATP, 1 NADH and 1 CO2 per molecule 16. Two molecules of ATP and two NADH are produced in the molecule. alcoholic fermentation process. 17. Lactic fermentation can generate CO2 18. Lipases are enzymes that help to break down the glycerol of the fatty acids in DHAP 19. The molecules DHAP and G3P are isomers. 20. Proteins can be used as fuel for cellular respiration and their...
15. Genetic defect in pyruvate dehydrogenase complex lead a. maple syrup urine disease b. phenyike d. lactic acidemia e. pellagra syrup urine disease b, phenylketonuria c. galactosemia 10. Chemical modification by phosphorylation of pyruvate dehydros a. deactivates the enzyme b. activates the enzyme lation of pyruvate dehydrogenase complex : 17. Pyruvate carboxylase is positively ated through the allosteric mechanism by : a. ATP b. NADH c. Acetyl-SCOA d. TPP e. Biotin 18. Which of the listed coenzymes does not particip...
Hi the automatic grader for my biochemistry assignment is saying
im getting things wrong but i cannot figure out which. Please tell
me which are wrong with corrected answers. Thanks!
DUE AT MIDNIGHT PLEASE HELP ASAP
Question 33 (2.5 points) Saved Which of the following is true regarding fatty acid synthesis? This is a mitochondrial process. The primary product of this pathway is a 12C saturated fatty acid The rate-limiting step of this pathway forms the four-carbon product, malate. The...
Hi the automatic grader for my biochemistry assignment is saying
im getting things wrong but i cannot figure out which. Please tell
me which are wrong with corrected answers. Thanks!
DUE AT MIDNIGHT PLEASE HELP ASAP
Question 23 (2.5 points) Saved Which of the following is true? Bile salts are amphipathic, which means they can act as an acid or a base. In the intestines, triacylglycerols must be broken down to monoacylglycerol and two fatty acids for transport into intestinal...
22. Lipids would produce with the carbohydrate of same weight. energy compared (a) more (b) less c) the same amount 23. Where are the proteins of electron-transport chain located in mitochondria for the cellular respiration? (a) matrix (c) inner membrane (b) outer membrane (d) both membranes 24. The flow of protons during the light reaction of photosynthesis is from thylakoid space to stroma and back to thylakoid space through the ATPase? (a) True (b) False 25. Which of the following...
Can someone please check my answers and aid in #12? 1. The amide nitrogen of glutamine: A. represents a nontoxic transport form of ammonia. B. is a major source of ammonia for urinary excretion. C. is used in the synthesis of asparagine, purines, and pynimidines. D. can be recovered as ammonia by the action of glutaminase. E. all of the above are correct. 2- Which of the following statements about glutamate is NOT true: a It can be synthesized in...
Do expect the cell to produce more ATP from one glucose molecule or from one fatty acid molecule? Explain your answer. Indicate whether the following statements are true or false. If a statement is false, explain why it is false The proteins of the electron-transport chain remove a pair of high-energy electrons from the cofactors, NADH and FADH_2, after which the electrons move across the inner mitochondrial membrane to maintain the voltage gradient. Gluconeogenesis is a linear reaction pathway that...