10 Questions
Where do ketone bodies diffuse from?
Liver mitochondria
What is the fate of acetone in the body?
It is excreted in the urine
What is the precursor molecule required for cholesterol synthesis?
Acetyl-CoA
Which enzyme catalyzes the conversion of HMG-CoA to mevalonic acid?
HMG-CoA reductase
Where is the subcellular location of cholesterol synthesis?
Cytosol and endoplasmic reticulum (ER)
What is the function of cholesterol synthesis?
De novo synthesis of cholesterol
Which organs make the largest contributions to the body's cholesterol pool?
Liver, intestine, adrenal cortex, ovaries, testes, and placenta
What is the role of cholesterol in the body?
Constituent of cellular membranes
Where is the reaction of converting acetyl-CoA to HMG-CoA located?
Cytosol
What is the product of the reaction catalyzed by HMG-CoA reductase?
Mevalonic acid
This quiz covers the metabolism of lipids, including the digestion of dietary lipids, lipid degradation, lipid biosynthesis, eicosanoids biosynthesis, and the metabolism of ketone bodies and cholesterol. It is a comprehensive quiz for biochemistry students.
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