Which condition is stimulated by allergens and results in bronchoconstriction, airway inflammation, and difficulty in exhaling?
A. Tuberculosis
B. Emphysema
C. Asthma
D. Chronic bronchitis
E. Pulmonary fibrosis
Answer: C
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How rapidly is the CSF volume replaced?
A) every 20 minutes B) every 2 hours C) every 8 hours D) every 2 days E) every week
The heart is confined within a double-walled serous membrane sac. The part of the membrane that is in contact with the heart is the ________ layer.
A. serous B. synovial C. parietal D. mesothelial E. visceral
Which of the following statements about ATP is false?
A) ATP drives the transport of certain solutes (e.g., amino acids) across cell membranes. B) ATP activates contractile proteins in muscle cells so that cells can shorten and perform mechanical work. C) ATP provides the energy needed to drive energy-absorbing chemical reactions. D) ATP is a modified nucleotide. E) The phosphate groups of ATP are attached by high-energy hydrogen bonds.
Cytotoxic T cells can attack (choose all that apply):
A. antibodies. B. antigens. C. cancerous cells. D. viral-infected cells.