Integration of human metabolism

The largest energy store in a well nourished human is

• Triacylglycerols

• Ketonic bodies

• Fructose

• Cholesterol

Except under rare conditions, what organ is almost exclusively dependent on glucose for energy?

• Liver

• Brain

• Small intestine

• Kidney

In addition to fatty acids, what molecule is needed by adipose tissue to synthesize triacylglycerols?

• acetyl-CoA

• alanine

• glycerol

• ketonic bodies

Which organ is considered to be the metabolic "hub" (center of activity) of the body?

• Brain

• Small intestine

• Liver

• Pancreas

What is the major metabolic fuel for the brain after several days of starvation?

• Fatty acids

• Lactate

• Amino acids

• Ketonic bodies

Which enzyme is responsible for the transfer of the amino group of an amino acid to a carbonyl compound?

• glutamate dehydrogenase

• transaminase

• carbamoyl phosphate synthase

• malate dehydrogenase

Which compound is synthesize from a glycine?

• histamine

• melanine

• heme (porphyrin)

• serotonine

which is the final destination of the amino group in the catabolism of an amino acid?

• Krebs cycle

• urea cycle

• glycolysis

• fatty acid synthesis

which is the main metabolite obtained in the catabolism of a purine?

• urea

• acetyl CoA

• glucose

• uric acid

which organ is responsible for the synthesis of glucagon and insulin?

• liver

• kidney

• brain

• pancreas