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.
The activation of G-protein-coupled receptors and G proteins
Primary production is positively correlated with the evapotranspiration rate.
Oil drop model of protein folding
Preventive and Primary Care Services
The helix-turn-helix regulatory protein motif
Heme Protein