Pulmonary surfactant increases alveolar surface tension and does not affect lung expansion
Indicate whether the statement is true or false
F
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When the pH ________, a state of acidosis exists
A) rises above 7 B) falls below 7 C) falls below 6.5 D) falls below 7.35 E) rises above 7.5
DiGeorge syndrome is a chromosomal disorder in which the thymus never develops/barely develops due to a deletion in a chromosome. Which of the following complications would you expect a child with DiGeorge syndrome to encounter?
A. The child will possess very few T lymphocytes and will be immunocompromised. B. The child will lose flow of lymph through the body, so recurrent edema will result. C. The child will not possess any B lymphocytes and will be immunocompromised. D. The space in which body fluid is filtered and pathogens are destroyed will be missing, so the child will be prone to life-threatening infections.
Allosteric modulation of a protein involves noncovalent binding of a ligand to a regulatory binding site
Indicate whether the statement is true or false.
__________ are receptors that can respond to painful stimuli.
A. Mechanoreceptors B. Chemoreceptors C. Nociceptors D. Photoreceptors