You have discovered a new animal and have decided to test its muscle physiology
ID: 3523492 • Letter: Y
Question
You have discovered a new animal and have decided to test its muscle physiology during exercise. While exercising the animal, you continually assay the blood and muscle chemistry. Your assays demonstrate that blood glucose levels drop dramatically and remain low throughout the whole exercise period. Additionally, you find that the muscle fibers exhaust their glycogen stores and that there is little to no glucose or lactate found within the cells. However, ATP levels within the cell are normal. Which of the following can you conclude regarding this animal's ability to maintain muscle activity during exercise?
You have discovered a new animal and have decided to test its muscle physiology during exercise. While exercising the animal, you continually assay the blood and muscle chemistry. Your assays demonstrate that blood glucose levels drop dramatically and remain low throughout the whole exercise period. Additionally, you find that the muscle fibers exhaust their glycogen stores and that there is little to no glucose or lactate found within the cells. However, ATP levels within the cell are normal. Which of the following can you conclude regarding this animal's ability to maintain muscle activity during exercise?
The intestinal transport of glucose in these animals must be extraordinarily high. The animal produces an excessive amount of lactic acid that is delivered to the liver for gluconeogenesis. The animal only uses fats for muscle metabolism within the cell in order to produce ATP. The animal only utilizes anaerobic metabolism for the production of ATP.Explanation / Answer
The energy resources for muscles during exercise has three systems.
But the options given are not mostly relevant.
The intestinal transport of glucose in these animals must be extraordinary high.
- as given in the question itself that there is no lactate. So there is no lactic acid to liver for gluconeogenesis.
-fats of adipose tissue not only source for animal's energy. It gains from glycogen and liver storage.
- anaerobic metabolism does it produces energy for long time.
So the first option is correct.
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