Which of the following occurs in pulmonary emphysema?
a. The alveoli lose their elasticity.
b. The surface area of the lung is greatly decreased.
c. Walls between adjacent alveoli become reinforced.
d. The heart becomes enlarged from pressure.
e. Fresh air accumulates in the lungs because it cannot be properly inhaled.
a
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Answer the question using the accompanying figure. At which point in this action potential diagram does the onset of
Na+ channel inactivation stop the inward flow of Na+?
a. A b. B
c. C d. D e. E
A protein is destined to be secreted from a cell. In which organelle would you expect to find the protein just after it is produced in the rough endoplasmic reticulum?
A) endosome B) lysosome C) secretory vesicle D) Golgi apparatus E) nucleus
Patients with legionellosis should be placed in isolation when hospitalized due to the contagious nature of the pathogen.
Indicate whether the statement is true or false.
Which of the following statements about the inner mitochondrial membrane is false?
A) ATP synthase is found in the inner mitochondrial membrane. B) The inner mitochondrial membrane plays a role in the production of pyruvate. C) Electron carriers are found in the inner mitochondrial membrane. D) A gradient of H+ exists across the inner mitochondrial membrane.