Which of the following protects the alveoli from bacterial infection?
a. Ciliated-epithelial cells
b. Scavenger cells
c. Goblet cells
d. Mucus
b
You might also like to view...
Which of the following characteristics BEST describe the majority of meals offered at fast-food restaurants?
A. high in Calories, high in total fat, high in sodium B. high in enriched grains, high in sodium, low in sugar C. high in sodium, high in protein, high in fiber D. high in total fat, low in Calories, low in carbohydrates
What protein transports vitamin B12 in the portal blood to the liver?
a. R protein b. Transcobalamin c. Cobalamin d. C protein
What is the carrier molecule needed for mitochondrial membrane transport of long-chain fatty acids and their CoA derivatives??
A) ?carnitine B) ?creatine C) ?creatinine D) ?cysteine
Many researchers argue that older adults need a protein intake of up to
A. 0.9 g/kg/day. B. 1.0 g/kg/day. C. 1.1 g/kg/day. D. 1.2 g/kg/day.