Which of the following is NOT TRUE about cholesterol biosynthesis?
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- Study Figure 19.18 and decide which of the following statements is false. Pyruvate dehydrogenase is inhibited by· NIADH. Pyruvate dehydrogenase is inhibited by AΤΡ. Citrate synthase is inhibited by NADH. Succinyl-CoA activates citrate synthase. Acetyl-CoA activates pyruvate carboxylase.Which of the following statements is TRUE about cholesterol biosynthesis? Group of answer choices HMG-CoA lyase catalyzes the committed step. Cholesterol is composed of 30 carbon atoms. NADH is needed to form mevalonate. Six molecules of isopentyl pyrophosphate condense to form squalene.Which of the following is NOT produced during the reactions of acetyl-CoA formation? (only one choice is correct) A. Acetyl CoA B. Electrons C. CO2 D. ATP
- Which of the following statements is TRUE about fatty acid biosynthesis? Group of answer choices: NADH is used as the reducing equivalent in the process. Malonyl ACP is the donor of the acetyl group. The product detaches from the fatty acid synthase complex when the chain length is usually 18 carbons. Oxaloacetate carries acetyl CoA to the cytosol.The Krebs cycle converts ________ through a cycle ofreactions. In the process, ATP, ________, and ________ areproduced.a. acetyl CoA; FAD, NADb. acetyl CoA; FADH2; NADHc. pyruvate; NAD; FADH2d. pyruvate; oxygen; oxaloacetateThe citrate cycle is a metabolic engine generating [ Select: "carbon monoxide", "NAD, FAD and GDP", "carbon dioxide, NADH, FADH, and GTP"] from the fuel [ Select : "triglycerides", "acetyl-CoA"]. It is considered a cycle since all components must be maintained beginning with the addition of the two carbons from acetyl-CoA to form [ Select ] ["succinate", "citrate"] from [ Select ]["fumarate", "oxaloacetate"]. The citrate cycle depends on the presence of oxygen since [ Select ]["oxygen is directly required in the citrate cycle", "oxygen is required for NADH and FADH2 oxidation, and their accumulation in the absence of electron transport results in feedback inhibition of the citrate cycle"] .
- Which of the following statements about the malate-aspartate shuttle is false? a) 2.5 ATPs are formed per cytoplasmic NADH shuttled. b) Transamination is involved. c) Cytoplasmic oxaloacetate is converted to malate. d) Mitochondrial malate is converted to oxaloacetate. e) Antiport transport is not involved.Which of the following is NOT produced during the reactions of acetyl-CoA formation? Acetyl CoA Electrons CO2 ATPFILL IN THE TABLE PATHWAY It takes place in PRODUCT No. of Product Equivalent ATP ENZYME RESPONSIBLE Glycolysis Pyruvate ------ NADH ATP Beta Oxidation (1cycle) NADH FADH2 Acetyl CoA --------- Pyruvate Decarboxylase NADH CO2 Citric Acid Cycle (Acetyl CoA) GTP NADH FADH2 CO2
- Which of the following metabolic processes directly involve Acetyl Coa (both as an immediate reactant or a product)? (Select all that apply) PDH Gluconeogenesis Electron Transport Chain Krebs Cycle FA synthesis Glycolysis Pentose Phosphate Pathway FA breakdownThe first step of β oxidation is: hydration by enoyl CoA hydrase. oxidation by FAD. activation by CoA. oxidation by NAD+. thiolysis by CoA.How many ATP can be made from one molecule of thefollowing? Explain how this is done. Acetyl-CoA Pyruvate FADH2 Glucose-6 phosphate