How is alveolar air different than inspired air?
A) Alveolar air has a lower PCO2 than inspired air.
B) Alveolar air has a higher PN2 than inspired air.
C) Alveolar air has a higher PO2 than inspired air.
D) Alveolar air has a higher PH2O than inhaled air.
D
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Identify the type of synapse that includes a presynaptic cell, synaptic cleft, and postsynaptic cell.
What will be an ideal response?
Which statement about the female pelvis is false?
A. The sacrum is wider than in males. B. The greater sciatic notch is narrower than in males. C. The pubic arch (subpubic angle) is usually greater than 100 degrees. D. The pelvic outlet is larger. E. The pelvis is generally less massive with smoother surfaces.
An increase in sodium and chloride ions in the peritubular fluid affects the descending thin limb in what way?
A) When the osmotic concentration around the peritubular fluid increases around the descending limb the result is a decreased osmotic outflow of water. B) When the osmotic concentration around the peritubular fluid increases around the descending limb the result is secretion of potassium ions. C) When the osmotic concentration around the peritubular fluid increases around the descending limb the result is an increased osmotic outflow of water. D) When the osmotic concentration around the peritubular fluid increases around the descending limb the result is reabsorption of potassium ions. E) When the osmotic concentration around the peritubular fluid increases around the descending limb the result is secretion of hydrogen ions.
Consider an atom with four electrons in its outer shell. If that atom is covalently bound to three other atoms within a molecule, then it is
A. in a double bond with one atom and in single bonds with two atoms.?B. in a single bond with one atom and in double bonds with two atoms.?C. in a triple bond with one atom and in single bonds with two atoms.?D. in double bonds with all three atoms.?E. in single bonds with all three atoms.