Concept explainers
(a)
Interpretation:
Whether the statement “both processes occur in the mitochondrial matrix” contrasting the processes of lipogenesis and the β-oxidation pathway is true or false has to be identified.
Concept introduction:
The β-oxidation pathway is defined as a repetitive series of four biochemical reactions in which acyl CoA is degraded to acetyl CoA by the removal of two carbon atoms at a time. NADH and FADH2 are also produced in this pathway.
Lipogenesis is the process employed for the synthesis of fatty acid. The starting precursor for the synthesis is acetyl CoA. The enzyme employed for the process is fatty acid synthase. It is a multienzyme complex that ties the reaction responsible for the synthesis of fatty acid.
A cyclic process for the chain elongation occurs in the enzyme fatty acid synthase. The one turn of this cyclic process constitutes four reactions. The various intermediates formed in the process are associated with a carrier protein known as ACP.
(b)
Interpretation:
Whether the statement “both processes use ACP as a carrier molecule” contrasting the processes of lipogenesis and the β-oxidation pathway is true or false has to be identified.
Concept introduction:
The β-oxidation pathway is defined as a repetitive series of four biochemical reactions in which acyl CoA is degraded to acetyl CoA by the removal of two carbon atoms at a time. NADH and FADH2 are also produced in this pathway.
Lipogenesis is the process employed for the synthesis of fatty acid. The starting precursor for the synthesis is acetyl CoA. The enzyme employed for the process is fatty acid synthase. It is a multienzyme complex that ties the reaction responsible for the synthesis of fatty acid.
A cyclic process for the chain elongation occurs in the enzyme fatty acid synthase. The one turn of this cyclic process constitutes four reactions. The various intermediates formed in the process are associated with a carrier protein known as ACP.
(c)
Interpretation:
Whether the statement “both processes use the same reducing agents” contrasting the processes of lipogenesis and the β-oxidation pathway is true or false has to be identified.
Concept introduction:
The β-oxidation pathway is defined as a repetitive series of four biochemical reactions in which acyl CoA is degraded to acetyl CoA by the removal of two carbon atoms at a time. NADH and FADH2 are also produced in this pathway.
Lipogenesis is the process employed for the synthesis of fatty acid. The starting precursor for the synthesis is acetyl CoA. The enzyme employed for the process is fatty acid synthase. It is a multienzyme complex that ties the reaction responsible for the synthesis of fatty acid.
A cyclic process for the chain elongation occurs in the enzyme fatty acid synthase. The one turn of this cyclic process constitutes four reactions. The various intermediates formed in the process are associated with a carrier protein known as ACP.
(d)
Interpretation:
Whether the statement “both processes involve the same
Concept introduction:
The β-oxidation pathway is defined as a repetitive series of four biochemical reactions in which acyl CoA is degraded to acetyl CoA by the removal of two carbon atoms at a time. NADH and FADH2 are also produced in this pathway.
Lipogenesis is the process employed for the synthesis of fatty acid. The starting precursor for the synthesis is acetyl CoA. The enzyme employed for the process is fatty acid synthase. It is a multienzyme complex that ties the reaction responsible for the synthesis of fatty acid.
A cyclic process for the chain elongation occurs in the enzyme fatty acid synthase. The one turn of this cyclic process constitutes four reactions. The various intermediates formed in the process are associated with a carrier protein known as ACP.
Want to see the full answer?
Check out a sample textbook solutionChapter 25 Solutions
General, Organic, and Biological Chemistry
- Which nutrient provides energy in its most concentrated form?arrow_forwardWhich of the three common metabolic pathways for pyruvate is compatible with each of the following characterizations concerning the reactions that pyruvate undergoes? a. Acetaldehyde is an intermediate in this pathway b. An anaerobic pathway that does not function in humans c. An anaerobic pathway that does function in humans d. A C2 molecule is a product under aerobic reaction conditions for this pathwayarrow_forwardMatch the lipid pathway with its description Question 27 options: dietary lipids absorbed and packaged into chylomicrons fate of VLDL produced in the liver pathway of HDL to return cholesterol to the liver fate of chylomicrons before they reach the liver 1. lipid absorption 2. exogenous 3. endogenous 4. reverse cholesterol transportarrow_forward
- Moving to the next question prevents changes to this answer. Question 1 Synthesis of cholesterol takes place in the O small intestine large intestine gall bladder pancreas liver Moving to the next question prevents changes to this answer.arrow_forwardFatty acids and triglycerides are an important source of nutrition and a dense form of stored energy. Digestion of fats yields more energy per gram than digestion of carbohydrates. Each turn on the B-oxidation spiral results in the formation of a new acetyl COA molecule. This molecule can then be used to generate more energy in A) fatty acid synthesis B) ketolysis C) glycolysis D) tricarboxylic acid cycle E) oxidative phosphorylationarrow_forwardCan you help to solve this?arrow_forward
- Citric acid cycle intermediates are replenished by anapleurotic reactions. List any two (2) citric acid cycle intermediates and the pathway(s) that replenish them...arrow_forwardAt what location are free fatty acids and monoacylglycerols repackaged into triacylglycerols for the second time?arrow_forwardClassify anabolism and catabolism as synthetic or degradative processes.arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co