Although other nutrients can feed into the citric acid cycle, ________ yields energy the quickest.
A) glycogen
B) glucose
C) protein
D) fat
E) an amino acid
Question 2
Cholecalciferol is synthesized within the
A) bone marrow of the skeletal system.
B) splenic pulp of the lymphatic system.
C) endothelial linings of the cardiovascular system.
D) hypothalamus of the nervous system.
E) epidermis of the integumentary system.