Assignment: Function of gluconeogenesis

Assignment: Function of gluconeogenesis

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Chemistry

What is the physiological function of gluconeogenesis?

A.    Gluconeogenesis is production of glucose from noncarbohydrate molecules in times when blood glucose levels are low. This ensures proper function of brain and red blood cells, which only use glucose as fuel.

B.     Gluconeogenesis is production of glucose from noncarbohydrate molecules in times when blood glucose levels are high. This ensures proper function of brain and white blood cells, which only use glucose as fuel.

C.     Gluconeogenesis is production of glucose from carbohydrate molecules in times when blood glucose levels are low. This ensures proper function of brain and red blood cells, which only use glucose as fuel.

D.    None of the above

Chemistry

What effect does glycogen metabolism have on glucose levels?

A.    Glycogen metabolism traps glucose within liver cells and increases storage of glucose in the form of glycogen. These processes decrease blood glucose levels.

B.     Glycogen metabolism traps glucose within liver cells and increases storage of glucose in the form of glycogen. These processes increase blood glucose levels.

C.     Glycogen metabolism releases glucose within liver cells and increases storage of glucose in the form of glycogen. These processes decrease blood glucose levels.

D.    None of the above

Chemistry

Carbon monoxide binds tightly to the heme groups of hemoglobin and myoglobin. How does this affinity reflect the toxicity of carbon monoxide?

A.    Since carbon monoxide binds the heme groups of hemoglobin, it is easily removed or replaced by oxygen. As a result, the effects of oxygen enhancement result in what divers call the “bends.”

B.     Because carbon monoxide binds the heme groups of hemoglobin, it is easily removed or replaced by oxygen. As a result, the effects of oxygen deprivation result in suffocation.

C.     Because carbon monoxide binds tightly to the heme groups of hemoglobin, it is not easily removed or replaced by oxygen. As a result, the effects of oxygen deprivation result in suffocation.

D.    None of the above

Pathophysiology

Which of the following may be a reason to order an ABG on a patient?

A.    The patient suddenly develops shortness of breath

B.     An asthmatic is starting to show signs of tiring

C.     A diabetic has developed Kussmaul’s respirations

D.    All of the above

Pharmacology

How do sulfa drugs selectively kill bacteria while causing no harm to humans?

A.    Folic acid is a vitamin required for the synthesis of a coenzyme needed to make the amino acid methionine and the purine and pyrimidine nitrogenious bases for DNA and RNA and folic acid is produced by humans.

B.     Sulfa drug binds to the enzyme, no product is formed, folic acid is made and the biosynthesis of methionine and nitrogenous bases increases.

C.     Humans are not harmed because they do not synthesize their own folic acid. It is obtained in the diet.

D.    None of the above