Exam 2 Bioscience

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Mammalian blood contains the equivalent of 0.15 M NaCl. Seawater contains the equivalent of 0.45 M NaCl. What will happen if red blood cells are transferred to seawater?

a. NaCl will passively diffuse into the red blood cells
b. NaCl will be exported from the red blood cells by facilitated diffusion
c. the blood cell will expend ATP for active transport of NaCl into the cytoplasm
d. water will leave the cells, causing them to shrivel and collapse
e. the blood cells will take up water, swell and eventually burst

Answer:
d. water will leave the cells, causing them to shrivel and collapse

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