6. Animals cannot convert fatty acids into glucose because
A. acetyl CoA can not be converted to pyruvate
B. absence of malate synthase
C. absence of dehydrogenase
D. absence of a-ketoglutarate dehydrogenase
7. In eukaryotes, fatty acid breakdown occurs in
A. mitochondrial matrix
B. cytosol
C. cell membrane
D. endoplasmic reticulum
8. What is the major protein constituent of high-density lipoprotein (HDL)?
A. Apolipoprotein A-l
B. Apolipoprotein C-l
C. Apolipoprotein E
D. None of these
9. Phospholipid contains
A. hydrophilic heads and hydrophobic tails
B. long water-soluble carbon chains
C. positively charged functional groups
D. both (b) and (c)
10. Micelles of fatty acids in water are organized such that the __________ faces the solvent and the __________ are directed toward the interior
A. carboxylic acid groups, hydrocarbon chains heads
B. hydrophilic heads, hydrophobic tails
C. hydrocarbon chains, carboxylic acid groups
D. both (a) and (b)
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