Assertion: Fatty acid would be broken down to acetyl CoA before entering the respiratory pathway when it is used as substrate.Reason: When the organism need to synthesize fatty acid, acetyl CoA would be withdrawn from the respiratory pathway for it.
Question
Assertion: Fatty acid would be broken down to acetyl CoA before entering the respiratory pathway when it is used as substrate.Reason: When the organism need to synthesize fatty acid, acetyl CoA would be withdrawn from the respiratory pathway for it.
Solution
The assertion and the reason are both correct and they are related. Fatty acids are indeed broken down into acetyl CoA before entering the respiratory pathway, a process known as beta-oxidation. This is because acetyl CoA is a key molecule in metabolism, used in many biochemical reactions. It is the output from the second stage of cellular respiration (the transition reaction that converts pyruvate into acetyl CoA) and is the input for the third stage (the citric acid cycle or Krebs cycle).
On the other hand, when the organism needs to synthesize fatty acids, acetyl CoA is indeed withdrawn from the respiratory pathway. This is because acetyl CoA serves as the building block for fatty acid synthesis. Therefore, the assertion and the reason are not only correct individually, but they are also directly related to each other.
Similar Questions
Assertion: Fatty acid would be broken down to acetyl CoA before entering the respiratory pathway when it is used as substrate.Reason: When the organism need to synthesize fatty acid, acetyl CoA would be withdrawn from the respiratory pathway for it.Both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.Assertion is True but the Reason is False.Both Assertion & Reason are False.
or aerobic metabolism, free fatty acids must be converted to acetyl-CoA viaGroup of answer choicesthe Krebs cyclethe electron transport chainβ-oxidationthe citric acid cycle
The pathways of fatty acid synthesis and breakdown are similar in that they bothGroup of answer choicesoccur in the same place in a cellinvolve Acetyl CoAinvolve Malonyl CoAare made of the same steps, just occurring in opposite directionsinvolve NADPH
A fatty acid undergoes complete β-oxidation to yield nine molecules of acetyl-CoA. No isomerization reactions occur. The structure of the original fatty acid was:
Which part(s) of cellular respiration do fatty acids feed into?Group of answer choicesoxidative phosphorylationglycolysisacetyl CoAcitric acid cycleNext
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