Answer to Question 1
ANS: A
PEM has adverse effects on respiratory musculature and the immune response. PEM may be ei-ther primary or secondary. Primary PEM results from inadequate intake of calories and/or protein and is typically seen only in developing countries. Secondary PEM is due to underlying illness. Illness may cause (1) decreased caloric or protein intake (e.g., anorexia, dysphagia); (2) increased nutrient losses (e.g., malabsorption or diarrhea); and/or (3) increased nutrient demands (e.g., in-jury or infection). As many as 50 of hospital patients may have secondary PEM.
Answer to Question 2
ANS: B
Carbohydrates have an RQ of 1.0, protein has an RQ of 0.82, and fat has an RQ of 0.7.
Positive regulation of the lac operon by the catabolite activator protein (CAP)
Energy-flow diagram for a Georgia salt marsh.
Preventive and Primary Care Services
Energy imbalance establishes a temperature gradient between the tropics and the poles
Peanut butter is good source of protein
Energy requirements of an uncatalyzed versus an enzymatically catalyzed chemical reaction