help me with numbers, 4, 5, and 6 pls. MODIFIED TRUE OR FALSE:A. 1ST statement is TRUE; 2nd statement is FALSEB. 2nd statement is TRUE; 1t statement is FALSEC. Both statements are TRUED. Both statements are FALSE1. The Stewart formula assumes that albumin is a weak acid in physiologic pH.The building block of cyclopentanoperhydrophenanthrene ring exhibits continuous conjugation.2. The enzyme HMG COA synthase is responsible for the catalytic breakdown of acetoacetyl CoA.The optimal ratio of carbonic acid to bicarbonate anion in physiologic conditions is 20:1.3. Essential fatty acids such as butyric acid, are fatty acids which can be synthesized by the body.Base excess is a good measure of metabolic disorder in the blood plasma.4. When NADH gets converted into NAD+, the molecule is understood to have undergone reduction.In the synthesis of cholesterol, squalene gets reduced into an epoxide form, forming squalene epoxide.5. L-mevalonic acid contains hydroxyl and carboxylic acid functional groups.Omega fatty acids are termed as such based on the location of the pi bond from the terminal methyl end.6. Lipids are generally non-polar in physiologic condition, making them aggregate together.The cholesterol molecule is generally linear, due to the flat structure of the steroid ring.7. Vitamin E, also known as calciferol, is classified as a terpene.The side chains of steroid molecules determine their function inside the body.8. The cyclopentanophenanthrene ring is a cyclic saturated fatty acid.A 58-steroid has a cis anti-trans-anb-trans backbone, in which the A/B rings are fused cis conformation.9. Steroids containing the 5-6 double bonds, as in cholesterol, are designated A5 steroids.The mitochondrion has its own genetic material, in the form of mitochondrial DNA.0. Administering albumin via an intravenous route can induce a transient metabolic acidosis.Estradiol is has two hydroxyl groups in its molecular structure, thus the suffix diol.

NADH is produced in the glycolysis and Krebs cycle. It is used in the production of ATP in the…

Answered: When NADH gets converted into NAD+, the…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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- MULTIPLE CHOICE - Please answer properly QUESTION : 1. Which of the following statements is TRUE in the catabolism of cytidine triphosphate (CTP)? A. the final product will have the same type of nitrogen-containing ring as CTP B. the nitrogen-containing ring will be oxidized C. nitrogen will be released in the form of ammonia (ammonium ion) D. hypoxanthine will be an intermediate 2. Which of the following biomolecules is a lipid? A. all of the above B. triglycerides C. steroids D. fatty acids
Please state if the statements are true or false.1. A furanose is a sugar in the Haworth projection that contains a 5-member ring2. Under anaerobic condition, pyruvate is eventually converted to carbon dioxide
3. b. If chymotrypsin is treated with disopropylfluorophosphate, catalysis cannot occur even in the presence of excess substrate concentration. Is this Inhibltion reversible or Irreversible?. Dilsopropylfluorophosphate Hyd
8. The enzyme thiolase catalyzes one step in the ß-oxidation of saturated fats. One portion of the mechanism for this reaction is shown below. Describe the catalytic mechanism at work. (Note: "SCOA" is shorthand for the compound Acetyl-CoA) RCOCH₂COSCoA + HSCOA → H3C₂OSC0A + RCOSCOA HN NH CH₂ NH CH₂ CH₂ FS Grease NH3 H-SCO A NH CH2 CH₂ NH3 S Co A CH₂ NH 1 3 H-SCO A H3C SCO A NH3 a h-SCOA R-C S Co A CH₂ CH₂ C H₂ 0=0 HN NH + NH3 H₂C HN CH₂ NH CH₂ CH₂ 2 S Co A CH₂ NH NH
29. Labels. Suppose that you had an in vitro fatty acid- synthesizing system that had all of the enzymes and cofactors required for fatty acid synthesis except for acetyl CoA. To this system, you added acetyl CoA that contained radioactive hydrogen (³H, tritium) and carbon 14 (¹4C) as shown here. 3H O 14 3H-C-C SCOA 3H The ratio of ³H/¹4C is 3. What would the ³H/14C ratio be after the synthesis of palmitic acid (C₁6) with the use of the radioactive acetyl CoA?
H8. Glucose labeled with 14 C at C-1 is added to a solution containing the enzymes and cofactors of the oxidative phase of the pentose phosphate pathway (aka hexose monophosphate pathway) which compounds will contain radioactive carbon? - Ribulose 5 phosphate, no label will be found, all compounds will be labeled, erythrose 4- phosphate, 7-[hps[hpsedoheptulose, fructose 6- phosphate, grlyceraldehyde 3-phosphate, xylulose 5 phosphate ribose 5 phosphate
Long 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. False
III. Match the item to each step in the Krebs Cycle. a. isocitrate f. oxaloacetate g. sulfur h. a-ketoglutarate i. fumarate j. ATP b. succinate C NAD d. malate e. succinyl-CoA 85. What molecule is formed when GTP is oxidized to form GDP? 86. What molecule is formed when FAD is reduced? 87. Which molecule must be reduced so that oxaloacetate is formed? IV. Match each compound to a step that of the Light-Dependent Reaction. a. P700 b. P680 . P680 d. ATP synthase e. PhotosystemI f. electron acceptor g. electron carrier h. chlorophyll II. i. NADPH reductase j. b. - f complex 88. Light photons excite electrons from this part of the Reaction Centre. 89. The enzyme that helps remove electrons from the thylakoid. 90. The enzyme that acts to form ATP with chemiosmosis. V. Match the enzyme or protein to the replication process. a. DNA polymerase l b. DNA polymerase I| . DNA polymerase III d. primase e. DNA ligase f. helicase g. single-strand-binding proteins h. topoisomerase Il 91. Unwinds helix…
2B. Calculate the total number of ATP that will be generated from the complete B-oxidation of oncobic acid (CH:(CH,),CH=CH(CH,),COOH; 15:1 cis-A9) in an organism that has all the standard required enzymes for metabolism but which pumps only 2 H" in complex I, 0 H' in complex II, 2 H* in complex III and 4 H' in complex IV. The F,F, ATPase is composed of 3 a/ß subunits and 10 c subunits. Show all of your calculations. HO
Cytosol Mitochondrion A. PATHWAY 1. major pathway of ethanol metabolism NAD* NADH + H* NAD* NADH + H* in the liver CH,-CH,-OH ADH + CH,-C=O CH;-C-OH + H-O-H ALDH ETHANOL ACETALDEHYDE АСЕТАТЕ WATER B. PATHWAY 2 microsomal ethanol CYP2E1 oxidizing system (MEOS) NADPH + H* + O2 NADP* + 2H,O Excess alcohol consumption increases the NADH:NAD* ratio in the cytosol of hepatocytes.
A7. Consider what can be concluded about the catalytic site (substrate binding site) of phosphatase and the binding site of NaF from the type of inhibition shown by NaF for phosphatase and illustrate it schematically. The inhibition typre is pure noncompetitive inhibition.

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