20. which of the following is true regarding residual air in the alceoli? seect all that appy a....

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Medical Sciences

20.which of the following is true regarding residual air in thealceoli? seect all that appy
a. mixes with newly-inspired air,reducing exugen pressure inthe alveoli and reducing oxygen uptake efficinecy in mammallings
b. prevents the alveoli from collapsing during life
c. is a primary source of nitrogen gas absorbed in thelungs
d. can be forcefully exhaled in certain circumstances such asintense strenuous activity

35. A neurotransmitter which binds a G protein-linked receptorwould likely exhibit a _______ response relative to aneurotransmitter which binds a ligand gated ion channel.
A. slower to develop, and a smaller scale response localizesto a single region of the cell
B faster to develop, but longer and more cell-wideresponde
C. slower to develop, but larger scale and more cell-woderesponse

37. The half-life of a hormone allows one to determine....select all that apply
a. the rate at which hormones are eliminated from thebody
b. the identity of a hormone
c. the rate of action of a hormone
d. the rate of travel through the blood to a target

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4.2 Ratings (853 Votes)

20b prevents the alveoli from collapsing during life Residual volumeis the volume of air that cannot be expelled from the lungs This volume remains unchanged regardless of the lung volume at See Answer

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