Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Long explanations are not needed. Direct answers would suffice.
a. High concentration of glucose 6-phosphate is inhibitory to the enzyme hexokinase.
I. True
II. False
b. Which compound is formed when NAH reduces pyruvate (anaerobic condition)?
I. lactate
II. alpha-ketoglutarate
III. glucose
IV. oxaloacetate
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- Defects in enzymes can have serious metabolic consequences. The table below shows the profile of four different patients presenting with metabolite levels that differ from normal expected ranges Observed metabolic changes Select one: OOO PATIENT PROFILE W Elevated ammonia. Decreased oxidation of Increased liver fatty acids. glutamate. a. b. Patient X Patient WXD C. Patient Y O d. Patient Z PATIENT PROFILE X Increased ATP synthesis. 10 An investigation revealed one patient harboured mutations in the enzymes arginase and carnitine acyltransferase 2, negatively affecting each enzyme's function. Which patient can this be attributed to? 3 OND - === - PATIENT PROFILE Y D KOOKOOKOO Decreased lactate. PATIENT PROFILE Z Increased fatty acyl- CoA in mitochondria. Decreased glycolysis. Decreased 0 DOND oxaloacetate levels. 00 Report question issue ! Noarrow_forwardPlease state if the statements are true or false. 1. Erythrulose is a ketopentose2. The conversion of 1 mole of malate to 1 mole oxaloacetate produces 1 mole of NADHarrow_forwardCHOOSE THE CORRECT LETTER 1.Which of the following molecules are NOT involved in the reaction catalyzed by phosphoglycerate kinase?A.3-phosphoglycerateB.NADHC. 1,3-bisphosphoglycerateD. ATP 2.What is the significance of the Kreb's cycle as a metabolic pathway?A.It allows recovery of energy from carbohydrates only.B.It allows recovery of energy from glucogenic and ketogenic amino acids.C.It allows recovery of energy from fatty acids only.D. It allows recovery of energy from several metabolic fuels that are brokEn down to acetyl-CoA 3.What is the product of glucose metabolism in skeletal muscles in aerobic conditions?A. glycogenB. Acetyl-CoAC. lactateD. acetaldehydearrow_forward
- 2. ANSWER THE TABLEarrow_forwardEnergy released from decarboxylation of pyruvate is used to form NADH. 1. True 2. Falsearrow_forwardLong explanations are not needed. Direct answers would suffice. ***kind of in a hurry so having the answer asap would greatly be appreciated, thank you :)) a. The product formed in the first substrate-level phosphorylation reaction in glycolysis is ___________. i. 1,3-bisphosphoglycerate ii. 2-phosphoglycerate iii. phosphoenol pyruvate iv. 3-phosphoglycerate b. Polysaccharides are biomolecules with monomeric units linked via peptide bond. i. True ii. Falsearrow_forward
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