blood   to  monitor our cholesterol levels.
Stand   back    from    all these   spheres within
spheres and the picture becomes less    dizzying.
The yolk    is  a   bag of  water   that    contains    free-
floating    proteins    and protein-fat-cholesterol-
lecithin    aggregates  —   and these   lipoprotein
aggregates  are what    give    the yolk    its
remarkable  capacities  for emulsifying and
enriching.
An   egg     yolk    granule     as  seen    through     the
electron    microscope. It  has fallen  apart   after
immersion    in  a   salt    solution,   and     is  an
intricate    assembly    of  proteins,   fats,
phospholipids,  and cholesterol.
The White
