Question

Whole-grain flour contains all parts of the grain with the exception of the bran. husk. germ. endosperm?

Answer 1

Answer;
Husk.
Whole-grain flour contains all parts of the grain with the exception of the husk.

Explanation; 
Whole grain foods contains the following parts; Bran, Endosperm and Germ, originally present before processing.
Refined grains on the other hand are mainly  composed of only endosperm portion of the grain. Milling process removes bran and some also removes germ, along with the majority of fiber, vitamins, minerals, antioxidants and phytochemicals.