The reflex that helps an infant hold on to the nipple and swallow is called the:

The reflex that helps an infant hold on to the nipple and swallow is called the:

A) rooting reflex
B) nursing reflex
C) sucking reflex
D) peristaltic reflex
E) fetal reflex


Answer: c

The hereditary inability of tissue cells to metabolize the amino acid phenylalanine, which can result in brain damage and retardation unless a special diet low in phenylalanine is followed, is called:

The hereditary inability of tissue cells to metabolize the amino acid phenylalanine, which can result in brain damage and retardation unless a special diet low in phenylalanine is followed, is called:

A) cystic fibrosis
B) cleft lip
C) cleft palate
D) phenylketonuria
E) tracheoesophageal fistula


Answer: d

Which one of the following is NOT true of cholesterol:

Which one of the following is NOT true of cholesterol:

A) it provides energy fuel for muscle contraction
B) it serves as the structural basis of steroid hormones
C) it serves as the structural basis of vitamin D
D) it is a major building block of plasma membranes
E) only about 15 percent comes from the diet


Answer: a

Nutrients detour through the liver via the:

Nutrients detour through the liver via the:

A) circle of Willis
B) hepatic portal circulation
C) Bowman's capsule
D) electron transport chain
E) glycogenesis


Answer: b