bran
protective coating around kernel of grain
rich in nutrients and fiber
germ
seed that grows into a wheat plant
rich in vitamins and minerals
endosperm
starch and proteins
husk
inedible part of a grain
whole-grain
contain much of the germ, bran, and endosperm
refined grain
contain only endosperm
no germ or bran
refined flour
finely ground endosperm usually enriched with nutrients
bleached for whiteness,
aka. white flour
wheat flour
flour made from endosperm of wheat kernel
whole-wheat flour
flour made from entire wheat kernel