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Metabolism of cholesterol test

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LESSON 28: METABOLISM OF CHOLESTEROL

Frage 1 von 11

1

Cholesterol is the precursor of...?

Wähle eine der folgenden:

  • 1.) Bile acids

  • 2.) Hormones

  • 3.) Vitamine D

  • Only 1.) and 2.) are true

  • All are true

Erklärung

Frage 2 von 11

1

Cholesterol can not be degraded

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 3 von 11

1

Which of these is not true?

Wähle eine der folgenden:

  • The substrates for the synthesis of cholesterol are AcetylCoA, ATP and NADPH

  • 30 reactions occur in cholesterol synthesis

  • The regulation of the synthesis takes place in the first step

  • Synthesis of cholesterol happens in a fasting state

  • Synthesis of cholesterol will take place in liver in the cytosol

Erklärung

Frage 4 von 11

1

Which enzyme can be blocked using statins leading to a regulation in the production of mevalonic acid?

Wähle eine der folgenden:

  • Thiolase

  • HMG-CoA synthase

  • HMG-CoA reductase

  • Squalene synthase

  • Prenyl transferase

Erklärung

Frage 5 von 11

1

Which molecule or molecules is/are inhibitors of the synthesis of cholesterol?

Wähle eine der folgenden:

  • Cholesterol

  • Glucagon

  • NADPH

  • ATP

  • Glucagon and cholesterol

Erklärung

Frage 6 von 11

1

What is found in the surface of a lipoprotein?

Wähle eine der folgenden:

  • Cholesterol esters and triglycerides

  • Proteins, phospholipids (the head) and the hydroxyl group of cholesterol

  • The hydroxyl group of cholesterol

  • Proteins and triglycerides

  • Cholesterol esters, triglycerides and proteins

Erklärung

Frage 7 von 11

1

Which is the biggest lipoprotein?

Wähle eine der folgenden:

  • Chylomicrons

  • VLDL's

  • IDL's

  • LDL's

  • HDL's

Erklärung

Frage 8 von 11

1

Which lipoprotein transport phospholipids?

Wähle eine der folgenden:

  • Chylomicrons

  • VLDL's

  • IDL's

  • LDL's

  • HDL's

Erklärung

Frage 9 von 11

1

If the levels of HDL cholesterol are higher that the levels of LDL this means that you have more bad cholesterol and you are deporting more cholesterol from liver to the tissues than the cholesterol that is transported from the tissues to the liver

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 10 von 11

1

Which of these statements is true?

Wähle eine der folgenden:

  • Any of these

  • Lipoprotein lipase is responsible for the transformation of Fatty Acids and glycerol into TG

  • Lipoprotein lipase is responsible for the transformation of TG and glycerol into Fatty Acids

  • Lipoprotein lipase is responsible for the transformation of Fatty Acids into TG and glycerol

  • Lipoprotein lipase is responsible for the transformation of Glycerol into Fatty Acids and TG

Erklärung

Frage 11 von 11

1

What could happen if you find high levels of chylomicrons in a clinical analysis?

Wähle eine der folgenden:

  • The patient is in a fasting state

  • The patient is in a fed state

  • The patient could have a disorder due to the endogenous pathway

  • The patient could have a disorder due to the reverse transport of cholesterol

  • Any of these

Erklärung

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