1) In a sentence or two, explain why fatty acids are capable of providing more energy than carbohydrates. BE SPECIFIC. 2) The answer to PART 1 actually creates complications in how lipids are digested. Why is this?

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
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Gram for gram, fatty acids provide more energy than carbohydrates. For this reason,
triacylglycerols were evolutionarily selected as the main energy storage molecule
over glycogen.
1) In a sentence or two, explain why fatty acids are capable of providing more energy
than carbohydrates. BE SPECIFIC.
2) The answer to PART 1 actually creates complications in how lipids are digested.
Why is this?
3) Now consider the fatty acid stearate. Stearate contains a total of 18 carbon (C)
atoms and, when it is oxidized, a TOTAL of nine acetyl CoA molecules are
produced. As you know, every molecule of glucose contains a total of six C atoms,
so three glucose molecules have the equivalent number of carbons as one stearte.
A) How many acetyl CoA molecules are produced when three glucose molecules
are oxidized?
B) Considering ALL of the above information, please explain why three glucose
molecules DO NOT provide the same amount of energy as one stearate molecule.
For full credit, link your answer to "the harvesting of energy-rich electrons."
Limit your answer to 2-3 sentences.
P
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Transcribed Image Text:Gram for gram, fatty acids provide more energy than carbohydrates. For this reason, triacylglycerols were evolutionarily selected as the main energy storage molecule over glycogen. 1) In a sentence or two, explain why fatty acids are capable of providing more energy than carbohydrates. BE SPECIFIC. 2) The answer to PART 1 actually creates complications in how lipids are digested. Why is this? 3) Now consider the fatty acid stearate. Stearate contains a total of 18 carbon (C) atoms and, when it is oxidized, a TOTAL of nine acetyl CoA molecules are produced. As you know, every molecule of glucose contains a total of six C atoms, so three glucose molecules have the equivalent number of carbons as one stearte. A) How many acetyl CoA molecules are produced when three glucose molecules are oxidized? B) Considering ALL of the above information, please explain why three glucose molecules DO NOT provide the same amount of energy as one stearate molecule. For full credit, link your answer to "the harvesting of energy-rich electrons." Limit your answer to 2-3 sentences. P Edit View Insert Format Tools Table U 12pt ✓ Paragraph hulu B 28 T² :
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