BI-491
Osmosis
Biology · Secondary 3 · Medium · Osmosis
A unicellular freshwater organism has a contractile vacuole that collects excess water and expels it. Why does water continuously enter the organism?
- Water diffuses in because the cytoplasm has higher water potential.
- Water enters by osmosis because the cytoplasm has lower water potential.
- Water is pumped in actively using energy from respiration.
- Water enters by diffusion of solutes into the cell.
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