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9 Cards in this Set
- Front
- Back
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Triacylglycerols are more efficient to store than carbohydrates because their hydrophobicity allows them to be stored in adipose cells without large amounts of bound water molecules.
True/False |
True |
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The normal physiological range of ketone bodies in the blood is about 0.5 to 3 mg/dL (0.05 to 0.3mM). If the ketone bodies are so important as a source of fuel why are the levels are so low in the normal state?
A.In the normal state production of ketone bodies would be lower than a stressed state such as diabetes or starvation. B.Ketone bodies are produced at a much slower rate than glucose. Hence, their concentration would be lower. C.Only the muscle can produce significant quantities of ketone bodies and this tissue is under the influence of the hormones insulin and glucagon. A lower level of ketone bodies means that insulin is not having an effect on the muscle tissue. D.Ketone bodies are an important source of energy even in normal state. The levels are low because the body is probably using the ketone bodies as quickly as they are produced. E.Ketone bodies are not an important source of energy in the normal state and so their blood levels are low |
Ketone bodies are an important source of energy even in normal state. The levels are low because the body is probably using the ketone bodies as quickly as they are produced.
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What is the main function of the carnitine shuttle system?
A.To transport fatty acids into the mitochondrion. B.To transport newly synthesized sphingolipids to the blood. C.To carry cholesterol from its site of synthesis in the endoplasmic reticulum to the plasma membrane. D.To aid in the assembly of chylomicrons. |
To transport fatty acids into the mitochondrion. |
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During starvation ketone bodies can take the place of glucose as a fuel for brain cells. True/False |
True |
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Ketone body synthesis is increased in which of the following conditions A.untreated diabetes B.starvation C.ketoacidosis D.increased fat oxidation E.all of the above |
All of the Above |
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Which is not a ketone body? A.dihydroxyacetone B.acetoacetate C.acetone D.β-hydroxybutyrate |
Dihydroxyacetone |
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A ketone functional group, and no other functional group, is found in which of the following ketone bodies: A.acetoacetate B.acetone C.β-hydroxybutyrate D.both A and B E.both B and C F.All A, B, and C |
Acetone |
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In one pass of the β-oxidation of fatty acids the following occurs:
A.two pairs of electrons are removed B.four H+ ions are removed C.two carbon atoms are removed D.one molecule of acetyl CoA is formed E.A and B only F.A and C only G.A and D only H.B and D only I.C and D only J.A, B, and D K.A, B, C, and D |
A, B, C and D |
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The brain normally uses both glucose and fatty acids as energy sources.
True/False |
False |
