Question

For an individual who finishes dinner around 7 p.m. Which of the following metabolic processes is NOT active around midnight?

Gluconeogenesis in the liver

Liver releases glucose to the blood.

Glycogen synthesis in skeletal muscle

Glycogen breakdown in the liver

Answer 1

If a person take dinner around 7 PM, it will be digested in next 3-4 hour and the generated monomeric compounds will be absorbed by intestinal wall and released in the blood for assimilation.

thus after digestion the level of glucoses will be more hence all the process related to the utilization glucose will be activated. but it is time of midnight, when the person is not active rather sleeping or at rest. hence the extra glucase will be converted into other storage products like making of glycogen, lipid biosynthesis etc.

hence during mid night,

1.gluconeogenesis - formation of new glucose molecule when glucose is deficient will not work.

2.liver will not release glucose into blood as the glucose is already high.

3. glycogen synthesis using extra glucose in skeletal muscles with be active

4. Glycogen breakdown takes place during deficiency of the glucose.

hence only one process formation of glycogen will be active.