Iron is stored in the body mainly as a protein-iron storage complex called
A. hemochromatosis.
B. ferritin.
C. glycogen.
D. myoglobin.
E. transferrin.
Answer: B
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A newly absorbed amino acids enters which of the following vessels leading to the hepatic portal veins?
A) Superior mesenteric vein B) Gastric veins C) Inferior vena cava D) Central vein
The process of spermatogenesis and spermiogenesis begins with a ________ and ends with four ________.
A. sperm cell; interstitial cells B. germ cell; gametes C. sperm cell; nurse cells D. secondary spermatocyte; germ cells E. secondary spermatocyte; spermatocytes in general
Gametes have half as many chromosomes as other cells in the body and are thus referred to as ________.
Fill in the blank(s) with the appropriate word(s).
The hormone ADH secreted from the posterior pituitary gland targets what organ?
A. Bone B. Uterus C. Liver D. Kidney