Questions and Answers
The process by which cells convert acetyl CoA to form ketone bodies is called ______.
ketogenesis
[Blank] occurs in the liver cell.
Ketogenesis
3 molecules of acetyl CoA form 3-hydroxy-3-methylglutaryl (HMG-______).
CoA
Ketolysis occurs in an ______ cell.
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From the liver, ketone bodies escape into the bloodstream and are transferred to an ______ cell.
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Lactose intolerance is an inability to digest ______, a sugar found in milk.
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Acetone, β-hydroxybutyrate, and acetoacetate are the three main ______ bodies.
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All 3 main ketone bodies are made from ______ CoA.
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Amino acids that can be converted to ketone bodies are called ______ amino acids.
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When ketone bodies are broken down, it becomes ______.
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Study Notes
Lactose Intolerance
- Lactose intolerance is the inability to digest lactose, a sugar found in milk.
Ketogenesis and Ketolysis
- There are three main ketone bodies: acetone, β-hydroxybutyrate, and acetoacetate.
- All three main ketone bodies are formed from Acetyl CoA.
- Acetyl CoA can be transferred between cells.
- Ketogenic amino acids are amino acids that can be converted to ketone bodies.
Ketogenesis
- Ketogenesis occurs in liver cells.
- Three molecules of acetyl CoA form 3-hydroxy-3-methylglutaryl (HMG-CoA), which then forms acetoacetate and β-hydroxybutyrate (BtHB).
- Ketone bodies formed in the liver cell escape into the bloodstream and are transferred to extrahepatic cells.
Ketolysis
- Ketolysis occurs in extrahepatic cells.
- Ketone bodies are broken down in ketolysis to provide energy.
The Function of Ketone Bodies
- Cells with excess acetyl CoA can transfer it to cells with less acetyl CoA.
- Ketone bodies serve as an energy source for cells.
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Description
Learn about lactose intolerance, an inability to digest lactose, and ketogenesis, a process that produces ketone bodies from Acetyl CoA.
