Micelles of fatty acids in water are organized such that the ___ face the solvent and the ___ are directed toward the interior A) hydrophilic heads; hydrophobic tails B) hydrophobic tails; hydrophilic heads C) hydrocarbon chains; carboxylic acid groups D) hydrophilic heads; hydrophilic tails

Endogenously synthesized triacylglycerols are transported from the liver to the extrahepatic tissues by which of the following lipoproteins? A) Chylomicrons B) VLDL C) LDL D) HDL

The main storage lipid in humans is: A) sphingomyelin         B) glycogen      C) triacylgylcerols          D) steroids

Which one of the following statements is true about GLUT transporters? A) GLUT, transport glycerides via facilitated diffusion across the cell plasma membrane B) GLUT2 is the major glucose transporter in brain, placenta and erythrocytes C) GLUT1 is found in the pancreas, liver and kidneys. D) GLUT4 exists in skeletal muscle cells, adipocytes, and cardiomyocytes

Sugars which differ from each other only around single carbon atom is called…. A) Stereoisomers B) Epimers C) Enantiomers D) Non-sugars

Dr. Rosalind Franklin accomplished discovering the first molecular X-ray structure of DNA

Which one of the following is true of diffusion and osmosis? A) Diffusion and osmosis rely on the concentration gradient of all compounds in the cells B) Diffusion and osmosis will proceed in the same direction if there is only one solute C) Diffusion and osmosis rely on the concentration gradient of only the compound of interest. D) Diffusion and osmosis cannot occur simultaneously.

Which vitamin is derived from cholesterol? A) Vitamin A B) Vitamin D C) Vitamin C D) Vitamin K

In the following epinephrine pathway, which component is the second messenger? Epinephrine → G protein-coupled receptor → G protein → adenylyl cyclase → cAMP → protein kinase A A) G-protein B) cAMP C) GTP D) Adenyl cyclase

The two strands of a DNA double helix are held together by: A) ionic bonds B) hydrogen bonds C) noncovalent bonds D) polar covalent bonds