
Concept explainers
(a)
Interpretation:
Whether the statement “about 50% of TAGs undergo complete hydrolysis in the stomach” concerning to triacylglycerol(TAG) digestion is true or false has to be determined.
Concept introduction:
Triacylglycerols are lipid molecules which constitute around 98% of the total dietary lipids. These lipid molecules undergo digestion/breakdown into simpler forms in the
(b)
Interpretation:
Whether the statement “cholecystokinin is the chemical name for bile” concerning to triacylglycerol(TAG) digestion is true or false has to be determined.
Concept introduction:
Triacylglycerols are lipid molecules which constitute around 98% of the total dietary lipids. These lipid molecules undergo digestion/breakdown into simpler forms in the digestive system and are later absorbed into the bloodstream. In the bloodstream, the hydrolysis products of triacylglycerols (fatty acids and glycerol) are absorbed by the body cells and are either broken down into acetyl CoA or stored as lipids for future use. Fats/Lipids are a richer source of energy compared to carbohydrates. While carbohydrates provide energy for immediate use, lipids provide energy for long term or future use. The structure of triacylglycerols is as follows:
(c)
Interpretation:
Whether the statement “most TAGs usually enter the small intestine in the form of monoacylglycerols” concerning to triacylglycerol(TAG) digestion is true or false has to be determined.
Concept introduction:
Triacylglycerols are lipid molecules which constitute around 98% of the total dietary lipids. These lipid molecules undergo digestion/breakdown into simpler forms in the digestive system and are later absorbed into the bloodstream. In the bloodstream, the hydrolysis products of triacylglycerols (fatty acids and glycerol) are absorbed by the body cells and are either broken down into acetyl CoA or stored as lipids for future use. Fats/Lipids are a richer source of energy compared to carbohydrates. While carbohydrates provide energy for immediate use, lipids provide energy for long term or future use. The structure of triacylglycerols is as follows:
(d)
Interpretation:
Whether the statement “chyme produced in the stomach settles to the bottom of the stomach” concerning to triacylglycerol(TAG) digestion is true or false has to be determined.
Concept introduction:
Triacylglycerols are lipid molecules which constitute around 98% of the total dietary lipids. These lipid molecules undergo digestion/breakdown into simpler forms in the digestive system and are later absorbed into the bloodstream. In the bloodstream, the hydrolysis products of triacylglycerols (fatty acids and glycerol) are absorbed by the body cells and are either broken down into acetyl CoA or stored as lipids for future use. Fats/Lipids are a richer source of energy compared to carbohydrates. While carbohydrates provide energy for immediate use, lipids provide energy for long term or future use.
The structure of triacylglycerols is as follows:

Want to see the full answer?
Check out a sample textbook solution
Chapter 25 Solutions
General, Organic, and Biological Chemistry
- Complete the following esterification reaction by drawing the structural formula of the product formed. HOH HO i catalyst catalyst OH HO (product has rum flavor) (product has orange flavor)arrow_forwardThe statements in the tables below are about two different chemical equilibria. The symbols have their usual meaning, for example AG stands for the standard Gibbs free energy of reaction and K stands for the equilibrium constant. In each table, there may be one statement that is faise because it contradicts the other three statements. If you find a false statement, check the box next to t Otherwise, check the "no false statements" box under the table. statement false? AG"1 no false statements: statement false? AG-0 0 InK-0 0 K-1 0 AH-TAS no false statements 2arrow_forwardComplete the following esterification reactions by drawing the line formulas of the carboxylic acid and alcohol required to form the ester shown. catalyst catalyst catalyst apricot fragrancearrow_forward
- Show the saponification products of the following ester: You don't need to draw in the Na+ cation. catalyst, A catalyst, A catalyst, Aarrow_forwardWhat would happen if the carboxylic acid and alcohol groups were on the same molecule? In essence, the molecule reacts with itself. Draw the structure of the products formed in this manner using the reactants below. If two functional groups interact with one another on the same molecule, this is called an “intramolecular" (within one) rather than "intermolecular" (between two or more) attack. OH OH catalyst OH HO catalyst catalyst HO OHarrow_forwardQ3: Write in the starting alkyl bromide used to form the following products. Include any reactants, reagents, and solvents over the reaction arrow. If more than one step is required, denote separate steps by using 1), 2), 3), etc. H OH racemic OH OH 5 racemicarrow_forward
- Draw the Lewis structure of the SO3-O(CH3)2 complex shown in the bottom right of slide 2in lecture 3-3 (“Me” means a CH3 group) – include all valence electron pairs and formal charges.From this structure, should the complex be a stable molecule? Explain.arrow_forwardPredict all organic product(s), including stereoisomers when applicable.arrow_forwardQ5: Propose a reasonable synthesis for the following decalin derivative. using only decalin and alkanes of 3 or fewer carbons. Decalin H3C HO க CH3arrow_forward
- 2Helparrow_forwardplease add appropriate arrows, and tell me clearly where to add arrows, or draw itarrow_forwardWhat I Have Learned Directions: Given the following reaction and the stress applied in each reaction, answer the question below. A. H2(g) + Cl2(g) 2 HCl(g) Stress applied: Decreasing the pressure 1. What is the Keq expression? 2. What will be the effect in the number of moles of HCl(g)? 3. What will be the Equilibrium Shift or the reaction? B. Fe3O4(s) + 4 H2(g) + heat 53 Fe(s) + 4 H₂O(g) Stress applied: Increasing the temperature 1. What is the Keq expression?. 2. What will be the effect in the volume of water vapor collected? 3. What will be the Equilibrium Shift or the reaction? C. 4 NH3(g) + 5 O2(g) 4 NO(g) + 6 H2O(g) + heat Stress applied: Increasing the volume of the container 1. What is the Keq expression?. 2. What will be the effect in the amount of H₂O? 3. What will be the Equilibrium Shift or the reaction?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 In FocusChemistryISBN:9781305084476Author:Tro, Nivaldo J., Neu, Don.Publisher:Cengage Learning




