A-LevelBiologyCell membranes and transport9700/12 · May/June 2022 · Q141 Mark
When animal cells are cultured, salt solution is added to keep the cells alive. What is the purpose of the salt solution?
Ato allow facilitated diffusion of salts into the cells
Bto prevent diffusion of other ions in or out of the cells
Cto prevent net movement of water into or out of the cells
Dto provide a source of energy for active transport
✓ Correct answer
C: to prevent net movement of water into or out of the cells
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