Question

by which process does oxygen move into the blood from an alveolus?
a. diffusion down a concentration gradient
b. diffusion up a concentration gradient
c. osmosis down a concentration gradient
d. osmosis up a concentration gradient

Answer 1

Explanation:

b is the answer for your question

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Answer 2

$\huge\mathfrak\orange {\underline{Answer}}$

B) Diffusion up a concentration gradient

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