1. During osmosis, individual molecules move: A. Toward lower concentration B. T
ID: 147174 • Letter: 1
Question
1. During osmosis, individual molecules move: A. Toward lower concentration B. Toward lower osmotic pressure C. all direction with equal probability D. Toward higher concentration
2. When the SimCell membrane in the Cell-O-Scope simulator jiggled back and forth, this was due to: A. Pressure against the membrane B. Osmosis causing molecules to flow across the membrane C. The membrane not being at equilibrium D. None of the above
3. Placing blood cells into a solution that is hypertonic tot he cells will cause the osmotic pressure of the cells to: A. Increase B. Decrease C. Neither increase nor decrease
Please answer correctly!
Explanation / Answer
1. A) During osmosis, the individual molecules move towards the lower concentration.
2. B) When the SimCell membrane in the Cell-O-Scope simulator jiggled back and forth, this was due to the osmosis causing molecules to flow across the membrane. Based on the osmotic pressure, the molecules move across the membrane.
3. B) Placing blood cells into a solution that is hypertonic to the cells will cause the osmotic pressure of the cells to decrease, causing the cells to shrink. The osmotic pressure outside of the cell is higher than that of inside the cell.
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