a) Although animals cannot synthesize glucose from acetyl-CoA, if a rat is fed^1
ID: 495708 • Letter: A
Question
a) Although animals cannot synthesize glucose from acetyl-CoA, if a rat is fed^14 C-labeled acetate (which can be converted to acetyl CoA by acetyl CoA synthetase), some of the label will appear in the glycogen extracted from its muscles. b) Similarly, although animals do not carry out photosynthesis, if a rat inhales^14 C-labeled CO2 some of the label will appear in aspartic acid in its tissues. Explain each of these observations, indicating the names of the most relevant pathways (for a) and enzymes (for b).Explanation / Answer
Solution:
It is common to found C-labelled CO2 in tissue as aspirtic acid pathway had been used by C-labelled CO2 in protein synthesis, also involves in conversion of stored energy to useful one under the condition of induced asphyxiation by CO2 in the rats system.
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